BAD SERVICE FROM HYUNDAI

Since the 18th October 2018 I have been experiencing problems with my almost new Hyundai Creta. The alarm sets off although there is no interference. Whilst in motion there is an error showing on the dash that the drivers door is open and the doors constantly lock and unlock on its own. After 5 assessments by Hyundai Springfield the problem is recurring. After many failed attempts with resolving the issue with the dealer, a letter from my attorneys were sent to the CEO - Niall Lynch, to the customer service department for attention Elizabeth Maloka, the principal dealers at Sherwood and Springfield regarding this issue, however to date I have not received any response nor has the problem with my vehicle been resolved. I am perturbed by the service received by Hyundai. My vehicle is under a year old, with mileage under 6000km. Terrible customer service. I will never recommend Hyundai to anyone.