CraftStudios code???

On Thursday there was a code from Craft Studios that gave 5,000 RP to whomever entered it. It was CRAFTSTUDIOS-#####, I can't remember the numbers used. Anyway, I put in this code and it became apparent that you could enter this code multiple times and get multiple x5000 RP. I did this and got about 100k RP in this fashion before the code was rendered useless (if this was "illegal"  in RC to put in the code multiple times I didn't know). I quit Robocraft and got back on, and ALL the money that I had recieved from that code was gone. Does anyone know why this happened, and if I can get the money back??