Disadvantes TWINGGO IGNITION

Gentlemen, good morning.

I have a concern referring to the Twingo ignition key, it presents continuous inconveniences with the ignition alert.
Request the key through the concessionaire and have tried twice that the vehicle recognizes it is not successful the operation.
If you know a little more about the problem and you can help me.

Your problem is not the look if not the unit that recognizes the key that goes around the ignition cylinder that proves another

I think the same since the coding is established by factory, and it does not work is not a key to the reader.