so i recently got a new debit card and whenever i try to enter it on ebay/paypal i'm met with an error saying the card number is invalid. I have no other card details saved on either site, so i'm genuinely at a loss
Sorry can't help you. You have not shown what country you are in on your profile OR said what country you are in. As Paypal is country specific then we can't advise without knowing that information.
Advice is voluntary. Kudos / Solution appreciated.
