Safari issues

Up until last week, I could access my account and order on QVC home shopping network. Then all of a sudden, it wouldn't accept my password and asked that I reset. I tried that and ended up back where I started in an endless loop. I contacted QVC and was told that Safari and Chrome no longer supported that. I can see QVC and their items, but can't order. So far I can't find a solution. I tried Firefox, and as soon as I try to log in, it reverts to Safari and I'm back in an endless loop. I understand that some people's bank accounts are also not working because of Safari. Any suggestions? I don't know how to get ahold of Safari directly.