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  How can I update/change information related to my American Express Merchant account e.g. bank account, business name, address, phone number, etc?
  What phone number do I call for approval of a Charge when my terminal refers me to call for Authorisation?
  What should I do if I suspect a Card may be stolen or fraudulent?
  How should I respond to an American Express Customer Service enquiry regarding a Charge?



How can I update/change information related to my American Express Merchant account e.g. bank account, business name, address, phone number, etc?

Call your Agent Bank that has set up a Merchant Agreement with you and they will be happy to assist you in completing your request.

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What phone number do I call for approval of a Charge when my terminal refers me to call for Authorisation?

Click here to see the Authorisations number. Be prepared to give your Merchant number, the Card account number and the amount of the Charge.

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What should I do if I suspect a Card may be stolen or fraudulent?

Do not confront the customer. If you are in any way suspicious, call Authorisations and say "Code 10". American Express pays rewards for Cards returned on our instruction. Be prepared to give your Merchant number and the Card account number.

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How should I respond to an American Express Customer Service enquiry regarding a Charge?

Be sure to respond either by post or fax to the address or fax number indicated with the requested documentary support before the reply-by date noted on the request. Indicate in the space provided whether Credit is due or no Credit is due, as supported by your attached documentation. If no reply is received from you by the reply-by date, American Express will deduct the Charge from your Merchant account.

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