once a key has been programmed to a car , it CANNOT be programmed to another car.
if your has whats know as avirgin key , you can buy this off the shelf , if its a key ordered to chassis number , up to a 2 week wait for it to come from france.
with coding the keys , some mobile specialists can do them , but you will need to get the immobiliser code from a renault dealer and that wont be easy , some wont give it full stop. some have rolling codes which can only be given via the renault diagnostic tool. (renault clip ).