Delayed Click input in Store

Occasionally I will click on something in the in-game store, usually the Bronzium Data Card or daily free PC login thing, and when if moving my cursor away to hit the Free/Buy button the it'll select something else that I moused over afterwards but I've already clicked and released on the thing I wanted. If I'm not paying close enough attention I can end up actually hitting purchase instead of backing out accidentally getting something that I really did not want. Today I purchased something for 3200 crystals so that really sucks. Does anyone else have any experience with this? Seems like maybe it happens a little more when the shop loads in a tad slower?