I’ve bought plenty in the past.
I had a similar problem in April. I ordered two WCO’s. A few days later I ordered three V3’s using the same ‘saved’ credit card. The second order was ‘canceled’ presumably because payment was denied by the CC company. It was not. Wyze claimed that they would reverse the charge. After three weeks I simply disputed the charge and got a credit. Wyze never did process an adjustment nor did they explain what caused the problem. In addition to that there doesn’t seem to be any way to edit or verify the previously stored card. In fact from my account/stored payment indicates that I have no stored payments.