RE: Coinbase is crazy
You bought some crypto with USD right?
If so it'll be credited to your account but you can't move it off the platform for 8 days. It's because the god-damned archaic banking system is that bloody slow. The bank's "blockchain" or ledger takes that long to settle. It's a joke.
Coinbase wants to get paid before they let you take it off their platform. Hope that helps.