Coinbase: Yep, same situation for me as the other comment...
A Coinbase customer review by GetHuman user ~Anonymous from November 19th, 2017
Background on ~Anonymous's case
GetHuman: ~Anonymous - can you tell our other Coinbase customers when your case took place?
~Anonymous: Yup. It was afternoon, on November 12th.
GetHuman: Did you reach out to Coinbase, and if so, how?
GetHuman: And which of these common Coinbase customer issues best describes the reason you wanted to talk to them?
(Shows ~Anonymous a list of common Coinbase problems)
~Anonymous: "Missing Coins" was why I was trying to call.
~Anonymous's review of Coinbase customer service
GetHuman: So how would you sum up your experience for GetHuman's Coinbase customer community? We'll censor any IDs, numbers, or codes and any inappropriate words here out of respect to the millions of other customers using this resource.
~Anonymous: Yep, same situation for me as the other commenter--funds just plain disappeared (coincidentally, when Coinbase was out of coins to sell themselves, suddenly mine got sold back to them without my permission), and no luck getting a response about why. No explanation whatsoever, going on * days. Tried multiple emails to above address, as well as the Coinbase Twitter account. Basically amounts to theft of what I purchased from them--they sold me coins, and then just took them back because they were still in my account, and therefore accessible (and made me pay for the privilege, since the BTC price had fallen drastically in the interim...now it's way back up, and what should've been my profit became theirs instead. Really, really unfortunate behavior from a site I'd otherwise thought was legitimate.
GetHuman: Let's quantify your experience contacting Coinbase. On a scale of 1 to 5, how easy is it go get help on a Coinbase problem?
~Anonymous: I'd give them a one out of five for ease of finding your way to help.
GetHuman: What about quality of communication. How would you rate that on a 1 to 5 scale?
~Anonymous: I'd give them a four out of five on communication.
GetHuman: And what about Coinbase's ability to quickly and effectively address your problem?
~Anonymous: For that I would say one out of five.
GetHuman: And finally- any advice for other Coinbase customers?
~Anonymous: Call them early in the day or late. Don't forget any personal or account information you might need for Coinbase to know who you are.
GetHuman: Well there you have it. Some useful feedback and words from ~Anonymous taken from his Coinbase customer service problem that occurred on November 12th, 2017.