Questionable service

I have a 2016 model Accent purchased from the Pinetown branch in DBN. The steering and centre arm rest are covered in leather and now the leather is fading and looking cheap which is now dropping the resale value of the vehicle from several dealerships I have been to trying to trade in my car. It has been 2 months and have had no feedback from the branch except that they are dealing with it. I have left messages for the dealer principle, customer service, service advisor and manager and have had no response. Furthermore the so called leather was not fitted by Hyundai rather outsourced and this is how the branch are excusing themselves from taking responsibility. This is just terrible service from a company that boasts about its aftersale service and support and to date, since August, have from have given me any proper feedback at all.