Please HELP! I changed my phone a year ago and lost ability to access my 2FA authentication app. Can’t withdrawal from Uphold!

I think I lost all my crypto because I can’t recover my authentication app. I switched phones a year ago. And haven’t bought or sold any crypto since. But now I’m trying to sell and I can’t even remember which authentication app I used, not to mention the codes. And I can’t withdrawal from uphold with out the code it generates in the app. Am I screwed forever. Is there anyway of contacting uphold to verify my identity another way. Please help, this could be an unbearable loss. Before the hindsight I now it was incredibly stupid to. It write them down and store them in a safe place. But I’m new to this.