Coinbase employee here. We're providing the bridge between finance 1.0 (e.g. banks) and finance 2.0. This means we're subject to requirements of the banking partners we work with and can only support merchants within their comfort level.
Your verification system is completely broken Dave. All my attempts to verify for past two years give "Unknown error". Any attempt to upload a new ID goes back to main screen.
I am exhausted from waiting for a reply from your helpdesk: they just send the same canned reply, when this might be a code bug in your verification workflow.
Unfortunately there are times when we would like to support a merchant but can't, but its a hard thing to keep the bridge open. You can read more here: https://medium.com/the-coinbase-blog/building-the-bridge-why...