The answer is No, Scottish Power does not accept Amex cards.
Scottish Power accepts payments via debit card, credit card (except Amex), direct debit, bank transfer, and cheque.
If you are a Scottish Power customer and wish to pay your bill using a credit card, you can use Visa or Mastercard. However, it is important to note that credit card payments may incur additional fees or interest charges, and it is always recommended to pay your balance in full each month to avoid accruing interest charges.