There's valid reasons I no longer promote or prefer Coinbase to buy cryptocurrency - I can't BUY or CASH OUT. Pitiful Coinbase. Worst customer service too!
The best service I've tested and use daily is CEX.io (and they have wonderful customer service and response time).
Stop using Coinbase before this happens to you for no reason.
Be prepared with a CEX.io account at https://cex.io/r/0/up107988344/0/