Sounds like BS to me, all the other transactions were completed and Hours is a Joke and they want us to wait a Day before putting in a ticket! What are they on drugs?
Computers run on ms not hours and days.
If you had a website where literally thousands of people were depositing the same coin, you would have to queue the deposits also to balance server load.
While that is true, It would not take (9 hours so far) more than a few minutes for a database update even if there were millions of transactions. I Supported Oracle DB's for massive companies (one of the top 3 semi-conductor manufacturers in the world) and do have a clue.
And if the Server load was so high that a simple DB field could not be updated I can Goddamn guarantee you that you could not see ANY trading happening on the front end.
This looks like an inside job to me, taking advantage of time in trades is a scam as old as exchanges.