This is incredibly frustrating, as, just before this massive spike in bitcoin’s value, I bought a significant amount of BTC using Coinbase. They took my money, then retroactively made it look like my (brand new) account had exactly the amount of debt that I had paid in, and now my account was at 0.

I sent in 2 support tickets and received no reply, so I resorted to a chargeback, presumably forfeiting any right to the BTC I purchased.

Just to add salt to the wounds, I now constantly see adverts for Coinbase

Avoid Coinbase like the Covid