I used a fastmail account and also got denied. Perhaps they deny anything not using a domain that's from a big email provider? I too provided US State issued i

I used a fastmail account and also got denied. Perhaps they deny anything not using a domain that's from a big email provider? I too provided US State issued identification, which still resulted in my account being denied. I generally think highly of the company, and want to pay them for their services; but they made it impossible for me.