Rhian

Hi I have a 2014 plate Nissan qashqai and I was involved in a car accident which wasn't my fault. My car has been fixed but the central locking seems intermittent along with the stop start. Long story short Nissan have fixed the main key fob but the spare key no longer works. The want to charge me £300 for a spare key. Does this seem right? Is there anywhere else I can get it done cheaper? Thanks in advance!