I checked on this issue, i used to have prepaid visa cards which worked fine with buying connects and that worked fine for almost 6 months. Suddenly i am geeting this message from last 2 weeks -
We are unable to authorize your card. Please add another billing method or contact your issuing bank.
I checked with upwork so they said there is no issue with upwork system, so i checked with bank about the issue and the error code they receives, they said upwork payment garway trying to create recurring payment and error code they receive is recurring.. I called upwork and they are supposed to come back to me on this,