Hello,
I wanted to suggest a minor fix, and a much needed one in my opinion. It would be nice if you could implement a filter requiring the user's confirmation on spending trophies. That would help preventing unwanted 'purchases', and especially repairing items at the blacksmith with the premium currency instead of gold. This happened to me twice already, just by a missclick. This is quite unfortunate as the popup window (Repair/Premium Repair/Sell) is small, and appears only when you hover the cursor over it.

I would be so much more happy without getting the frustration when i'm in a hurry and this happens...AGAIN.