Amex, like basically all other card issuers, have essentially stopped giving customers preference in chargebacks since 2020 or so. What used to be solid advice now rings hollow - you’re more likely to be asked for information that not available to you than allowing your chargeback to go through.
Anecdotal but Chase helped me out when my gym kept charging me after I canceled. I kept my cancelation receipt and sent that in and that's all I needed to do.
Amex, like basically all other card issuers, have essentially stopped giving customers preference in chargebacks since 2020 or so. What used to be solid advice now rings hollow - you’re more likely to be asked for information that not available to you than allowing your chargeback to go through.
Anecdotal but Chase helped me out when my gym kept charging me after I canceled. I kept my cancelation receipt and sent that in and that's all I needed to do.