u/seahawks1093

I've tried chatting with affirm for hours and haven't gotten anywhere. I have been trying to pay a vet bill online using my affirm card and keep getting a message it can't go through. I have been approved and have everything set up with a payment plan already. The vet accepts Visa cards and doesn't sound like it's anything on their end. Affirm just keeps telling me that it should go through but it doesn't. Has anyone had this issue before and have any advice on how to fix it?