u/Assclownwerewolf

I bought a used CX5 recently and went to get a new key fob and the shop told me he can’t pair it to the car because it already has two sets in the system. He also told me that he could remove both keys but could not guarantee that he could connect the keys again after. Anybody else have this issue? He said it could also be the receiver for the fobs is broken and might need to be replaced.