I already made a ticket to get my own problem resolved. I am putting this here so users are aware this is happening however.

I bought an item from a user shop cw shop and i ended up with 2 extras in my inventory and it had taken my csc 2 extra times. It asked me when i purchased if i was sure if would like to buy this item i hit yes. Yet i still ended up with 2 extras which i find really strange.

this hasn't happened again to me