vehicle remote

Good day,<br> <br> I purchased a Nissan mp 200 in February 2015, on delivery i found the spare remote was faulty, when it went in for service i complained about it but was told nothing could be done, I went and saw the sales manager and he told me it does not have a warranty,i informed it was delivered faulty, he said he would order me one, after contacting him on a couple of occasions still no joy after six weeks. ( i purchased the vehicle cash )