There is a bill in congress right now that would make it illegal for any financial service provider to directly or indirectly prohibit or inhibit any legal transaction. It's called the Fair Access to Banking Act. H.R.987 in the House, S.401 in the Senate. Call your Representatives. Get it passed.
It's sad it requires a bill for congress to force credit card companies and other financial institutions to not discriminate. Still not as bad as Canada, at least they didn't freeze your accounts for donating to a peaceful protest even though you're 2000mi away sitting on your couch, or lying in bed 🤬 🤬 🤬. I hope the levy huge fines against them, like unprecedentedly high dollar amount.