True, you must be online to claim gems and other stakes, unless you have VIP 3 or higher with auto=collect. But I have had gems not awarded from the arena and lab after clicking to claim them and getting a serve disconnect or failure to sync with server error and being forced to refresh. Clicked to claim, graphics showed gems "floating" to inventory, but when forced to refresh, gems are gone from inventory and areana/lab.Just another glitch in the ever growing list of glitches not yet addressed by UCool. *shrugs* It's a game. Not gonna fret over lost gems that I paid no RW cash for. Now if they were gems I spent real money on... different story.

It's just a game. Not the end of the world. Take a deep breath, go outside and get some fresh air, and move on.