Very bad Customer service

Hi,I experience a very bad service from CMH Nissan Pinetown.When I try to communicate with them via emails or telephonically they just ignored me after I supported them by buying my car from them,CMH Nissan Pinetown will never be trusted by me,especially the sales lady that was assisting me from the begining of the deal by the name Philisiwe Xaba.I so wish they will never treat their customers again like they do with me. I believe that the good customer service should be the priority in any business.When you give one customer a good service he/she will attract ten more customers.