Coinbase suspended my merchant account from receiving funds about 5 years ago without warning. I was receiving funds as any merchant would, with the occasional

Coinbase suspended my merchant account from receiving funds about 5 years ago without warning. I was receiving funds as any merchant would, with the occasional payout to bank. I had no idea why they suspending receiving, and as some already know, their support was not very supportive. The only reason I could think of is possibly receiving tainted funds?