Obtain the decision in writing
Ask the bank to identify the process used, the reason for rejection and the evidence it relied on. A short message saying that the claim was unsuccessful may not reveal whether the problem was a deadline, an unsupported dispute reason or evidence supplied by the merchant.
Compare the decision with the submission
Check whether the bank addressed the transaction and complaint you actually made. Confirm that all attachments were received and readable. If the decision refers to a fact that is wrong, identify the source document that corrects it rather than simply repeating the original request.
Separate review from repetition
A useful request for review points to a material error, new evidence or a procedural gap. Resending the same narrative without addressing the rejection is unlikely to help. Keep the tone factual and include the complaint reference and the remedy sought.
Consider the available escalation route
Depending on the jurisdiction and payment method, options may include the bank's formal complaint procedure, an ombudsman or alternative dispute body, a statutory claim or court proceedings. Each has its own scope and deadline. A chargeback rejection does not itself decide every possible legal right.
Assess proportionality and prospects
Consider the amount, evidence, likely cost and practical benefit before escalating. No adviser can guarantee recovery. Obtain advice based on the specific documents and jurisdiction; this article is general information only.