Home / Blog / AXA Insurance Claim Denied: How to Appeal Your Decision
July 10, 2025

AXA Insurance Claim Denied: How to Appeal Your Decision

AXA claim denied? Learn your appeal rights across UK, France, Hong Kong, and Singapore with FOS/IARB/FIDReC escalation.

AXA Insurance Claim Denied: How to Appeal Your Decision

AXA is one of the world's largest insurance groups, operating across dozens of countries. Whether you have AXA coverage in the UK, France, Hong Kong, or Singapore, you have the right to appeal if your claim is denied. This guide walks you through the specific process for your region.

Common Reasons AXA Denies Claims

Before you appeal, understand what triggered the denial.

Pre-Existing Condition Denials

AXA often denies health claims for pre-existing conditions. They argue the condition existed before your policy started. But "pre-existing" is complex—sometimes you had symptoms you didn't recognize as a serious condition. If your condition was diagnosed after the policy started, AXA's pre-existing exclusion may not apply.

Missing Pre-Authorization

AXA frequently requires pre-authorization for hospital treatment and certain procedures. If you didn't obtain pre-auth and proceeded anyway, AXA may deny the claim. However, if they failed to clearly communicate the pre-auth requirement or made obtaining it unreasonably difficult, you have appeal grounds.

Treatment Not "Medically Necessary"

AXA uses its own medical guidelines to determine necessity. Your doctor may have recommended treatment that AXA deems unnecessary. This judgment call is often reversible, especially with strong physician support in your appeal.

Claim Outside Coverage Terms

Your AXA policy may not cover what you claimed—a specific treatment, condition, or situation. But sometimes AXA interprets coverage limits too strictly. For example, they may deny a complication of a covered condition or refuse coverage for a standard treatment they say is "experimental."

Failure to Disclose or Misrepresentation

AXA may claim you didn't disclose something during application, or that you gave false information. Review what you actually said. Did you honestly answer the questions asked? Did AXA ask ambiguous questions you couldn't be expected to fully answer?

Appealing AXA in the United Kingdom

UK law provides strong consumer protections for AXA customers.

Step 1: Request AXA's Formal Denial Letter

Contact AXA immediately and request a written explanation of your denial. By UK financial services law, they must provide this. The letter must clearly explain:

  • The specific reason for denial
  • Which policy terms support the decision
  • How to complain
  • Your rights to escalate

If their initial response is vague, follow up in writing demanding specifics.

Step 2: Understand Your Policy Language

Read your actual AXA policy document carefully. Look for:

  • Precise definitions of what's covered
  • Exclusions that might apply to your claim
  • Waiting periods (have yours expired?)
  • Sub-limits and special conditions
  • Any ambiguous language (interpreted in your favor under UK law)

Step 3: Gather Comprehensive Evidence

Collect everything supporting your claim:

  • Complete medical records from all treating providers
  • Specialist reports specifically addressing your condition
  • Hospital discharge summaries
  • Letters from your doctor explaining medical necessity
  • Receipts and invoices
  • Your original application form
  • All correspondence with AXA
  • Proof of timeline (when condition started, when claimed)

Step 4: Submit Your Formal Appeal to AXA

Write a clear appeal letter to AXA's Complaints Department. Include:

  • Your policy number and claim reference
  • Date of the original denial
  • Detailed explanation of why AXA's decision was wrong
  • References to policy language that supports your claim
  • All attached evidence, numbered and listed
  • Specific request for reversal of the denial
  • Your preferred contact method

Send via registered mail or email with read receipt. Keep copies of everything.

AXA must acknowledge your complaint within 1 business day and provide a substantive response within 8 weeks.

Step 5: Escalate to the Financial Ombudsman Service (FOS)

If AXA doesn't respond properly or you disagree with their decision, escalate to the Financial Ombudsman Service. FOS is independent, free, and can direct AXA to pay.

File your complaint at www.financial-ombudsman.org.uk. Include:

  • All correspondence with AXA
  • Your policy documents
  • Medical records and evidence
  • Written explanation of why AXA's decision was wrong
  • Proof that you already complained to AXA

FOS typically resolves complaints within 8 weeks (though complex cases may take longer). For claims under ÂŁ350,000, their decision is binding on AXA.

Appealing AXA in France

France's regulator is the ACPR (Autorité de ContrÎle Prudentiel et de Résolution).

Step 1-3: Follow the Same Initial Steps

Request AXA's formal denial, understand your policy, and gather comprehensive evidence. The process is similar to the UK.

Step 2: Submit Your Appeal to AXA

Send your formal appeal to AXA's French complaints department. AXA must respond within 2 months.

Step 3: File with ACPR or FBF Mediator

If AXA denies your appeal or doesn't respond adequately, you can escalate to either:

  • ACPR (regulatory complaints), or
  • FBF Mediator (mediation and resolution)

Both services are free. The FBF Mediator process is similar to FOS in the UK—an independent third party investigates and can direct AXA to pay.

Appealing AXA in Hong Kong

Hong Kong's Insurance Authority oversees all insurers, including AXA.

Step 1: Request Detailed Denial Information from AXA Hong Kong

Contact AXA and request a formal, written explanation including the specific policy clause, what information they reviewed, and their medical reasoning (if applicable).

Step 2: File Your Internal Appeal

Prepare a detailed appeal letter addressing AXA's specific reason for denial. Include all medical records, specialist letters, and documentation. Send to AXA Hong Kong's Complaints Department via registered mail.

AXA must respond within 4 weeks.

Step 3: Escalate to the Insurance Authority or IARB

If AXA maintains the denial, you can escalate to the Insurance Authority. For disputes under HK$600,000, you can use the free Insurance Authority's Arbitration service (IARB).

File your complaint with the IA and include all documentation, your policy, and explanation of why AXA is wrong. The IA investigates and can direct AXA to pay.

Appealing AXA in Singapore

Singapore's regulator is the Monetary Authority (MAS), with FIDReC handling disputes.

Step 1-3: Follow Initial Steps

Request AXA's formal denial, understand your policy, and gather evidence (same as other regions).

Step 4: File Your Internal Appeal with AXA

Send your formal appeal to AXA Singapore's Complaints Department. AXA must acknowledge within 1 week and respond substantively within 4 weeks.

Step 5: Escalate to FIDReC

If AXA denies your appeal or doesn't respond adequately, file with FIDReC at www.fidrec.sg.

Include all correspondence with AXA, your policy, medical records, and written explanation of why AXA is wrong. FIDReC will investigate independently and can direct AXA to pay.

For claims under S$250,000, FIDReC's decision is binding on AXA. Process typically takes 4 months.

Building Your Strongest Appeal

Regardless of region, the strongest appeals follow these principles.

Address AXA's Specific Reason for Denial

Don't argue generally about your medical condition. Focus on what AXA specifically said was wrong. If they said treatment wasn't medically necessary, get your doctor to address that specific concern. If they said it's pre-existing, provide evidence of when the condition actually started.

Use Policy Language

Quote your actual policy in the appeal. If AXA's stated reason doesn't match the policy language, highlight the discrepancy. If the exclusion language is ambiguous, explain how it could support your claim.

Get Multiple Medical Voices

Letters from:

  • Your primary treating doctor
  • A relevant specialist
  • Another independent physician

Multiple medical opinions carry more weight than one.

Create a Clear Timeline

Show exactly when you purchased the policy, when your condition developed, when you sought treatment, when you claimed, and when AXA denied it. This timeline is powerful for pre-existing condition denials.

Regional Deadlines: Don't Miss These

  • UK (FOS): File within 6 years of the event or 3 years of discovering the loss
  • France (FBF Mediator): File within 1 year of AXA's final response
  • Hong Kong (IA): File within 3 years of the event
  • Singapore (FIDReC): File within 1 year of the denial

Act quickly. File your internal appeal immediately, and escalate to the regulator within weeks, not months.

Getting Help With Your AXA Appeal

Writing an effective appeal is harder than it looks. You need to know which arguments matter, how to structure them, and which evidence to emphasize. Different regions have different processes. One weak appeal, and your denial stands.

ClaimBack specializes in appeals across major international carriers including AXA. We analyze your denial letter, identify your region-specific process, find your strongest arguments, and draft a compelling appeal letter. You review, edit, and submit it yourself—maintaining full control.

Get your free AXA appeal analysis →


Disclaimer: ClaimBack provides AI-generated appeal assistance for informational purposes only. ClaimBack is not a law firm and does not provide legal advice. Always review your appeal letter before sending and consider professional advice for complex or high-value claims.

Ready to fight your denial? Start your free claim analysis →

Dealing with a denied claim?

Get a professional appeal letter in minutes — no legal expertise required.

Analyse My Claim — Free →