"Zounds! An internal error has occurred"

I’ve been trying for a week now to buy game time but it refuses every time. I end up with “Zounds! An internal error has occurred” and goes on about making sure I have enough to pay and zero issues, to clear cache and cookies in in browser which I did, or to delete my pay methods and re do it which I also did. Still nothing. Its not a payment issues because I can pay for other stuff online just fine, but here? Nope, no time, no transfers, nothing.