Feel your pain bud, been unable to use my card to make purchases for ESO since the 29th of April when it last worked. All we're getting is "we are aware and investigating" but it's been that way for a month and still no progress. As someone with direct experience of the payment processing industry and integrations, I know that issues like this are typically solved in a day or two (if I was tasked with fixing it and it took any longer I'd be hanging my head in shame).

If it takes longer than a couple of days to resolve then there are other reasons for it not being fixed. We've been at that stage for the last month, and with so little communication from Zenimax it's abundantly clear that this is not a high priority for them to sort out, if indeed they do want to.

I did a ticket and got this:

Greetings!

Thank you for contacting The Elder Scrolls Online Team regarding the Payment Issues you're experiencing.

We are receiving reports of players getting the error "The card whose details you have entered is not supported. Please enter the details of another card or try another payment method", when attempting to purchase Crowns or ESO Plus on the website. While we are investigating this error, please attempt to use a different payment method.

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Regards,
The Elder Scrolls Online Team

I cannot use anotehr card - the other card I have says the exact same thing....

So basicaly I cannot buy anything from Elder scrolls online....but you can use the same card deets for my eso+ as sending me a scripted reply about the issue is really not helping and making not want to bother, hey if you do not want my money....