2006 Passat Keys
 

I got some spare keys from the internet (e-bay) and they have the same FCC ID and IC id as my working key, but the dealer told me that they still wouldn't be able to program it to my car. Does anyone know if they are correct or do they just want to lure me into buying a key from them? There is also another number underneath the IC id in one of the spares it's 21/05 . Does anyone know what this number stands for?