I went through this almost two years ago, with the key difference being that I was able to sign up with Square and accept payments around four years ago (whenever they launched). I even interviewed there at one point, just like you.

After two months, they closed my account because I was living in Puerto Rico at that time and there are no partner banks in Puerto Rico. Once I moved to San Francisco and linked Square with my new California bank account, I was able to accept payments again.

Then one day I got a notification indicating that my account had been closed, and that the decision is final. I contacted Support, and they reiterated that their decision was final, and could not communicate with me any further.

It is the weirdest interaction I've ever had with a company. I still use them as a payment method and I'm a big fan of the company, but I feel disappointed whenever I log in and they remind me that my merchant account is disabled.