help! remote smart key was stolen

[us_matrix]

Hi,

One of my remote key (No comfort access feature) was stolen and my driver license. They know where I live and where the car is parked. Does anyone know if dealer is the only place to order remote key? I heard they are very expensive like $300 a piece. Any where else i can get for cheaper price?

And my other concern is that the thief have my key so he can drive my car away, is it possible I can reprogramming the other key and the X5 by myself so the key he stole from me cannot be used anymore?

Thanks in advance