I've been trading on Coinbase about 4 years. I sent a Litecoin back in April as a test before sending the rest, and it's still pending on the Coinbase end after 4 months. After several support tickets, and trying to call I gave up on them entirely. It shows up with over 60 thousand confirmations, and they just completely ignore me. I'm not the only one that's had this happen in recent months. They have quickly turned into the worst exchange available. I'd heavily advise against trading with them. If you have an account with them, move it somewhere else, or offline.
I'm glad i moved away from Coinbase a few years ago, I was using them pretty consistency but I'm glad that I chose to move because it seems like ever since I left their service they just keep getting worse when it comes to account management and customer service. From locking customers' accounts due to "suspected" activity to taking weeks to verify deposits and the like, it's just absolutely insane how that company is being run. It amazes me more that they are still listed as a decent company in many facets of the community to be completely honest.