[BUG] The Excelsior use gems instead of crystals without any alert !!

Hello, I was using a lot of gems while I'm not aware that I got used some of my gems, I really was click that pink button and click ok, but then I figured out that my gems are used instead of those 2 crystals, I really lost like 300 - 400 gems or so around this, add 58 to report this bug.

This is before I start:
http://i.imgur.com/Wi5PvIc.jpg

This is after (note the gems decreased and I still have those 2 crystals!!!):
http://i.imgur.com/CLLwY9p.jpg

Also this is from my storage:
http://i.imgur.com/M26QkOA.png

I really DON'T want to use gems for this!!, my question now, may you report this issue asap?, I really don't know how many times already fell in this trap! also, can I have my gems back, it is not my fault that I used them without warning?