my payment form won't take Amex

It seems a user on my form wasn't able to pay with an Amex card, but had a successful transaction with his Mastercard. He had received a message saying Amex wasn't supported on the website.  Is there some kind of problem with my form?  Amex is offered as one of the payment options.

Paypal does not accept accept Amex in Paypal Pro. Period. See what they said to me:

PayPal Pro does not support Amex. The main reasons for this are:

·         - The excessive charges that Amex & Discover demand for the use of their cards

·         - The Amex chargeback policy which allows buyers to file a chargeback up to 2 years after a transaction, therefore offering very little certainty to merchants such as yourself

·        -  The fact that both Amex & Discover only make up 1% of the market

Unfortunately at present, Shopify still have Amex as an option, despite it not being supported. There is nothing that PayPal can do about this as it is cosmetic at Shopify’s end, however I’m sure it will change.

It is unlikely that you will have many customers who wish to use Amex, however, if you do, you can direct them to the ‘PayPal Express Checkout’ option on your checkout flow. This payment option does support both Amex & Discover, just not the Pro option.