Horrible After Sale Service!

Bought a vehicle from them in July 2018. Spare key did not work. I reported it to them immediately. They eventually sent a courier to fetch the faulty key, which then got 'lost/******' on its way back to them. After countless mails and messages they agreed to pay for the spare key if I sent them a quote for replacement. Quote was sent on the 26th of March. The manager simply refuses to make payment and does not reply to emails. Very unhappy with the service! It seems that customer satisfaction is worth less than the cost of a spare key.