KIA SANDTON AND LIQUID CAPITAL BAD SERVICE.

My 1 year old Kia Sonet has issues with the exhaust pipe. I have a warranty and a maintainance plan on this car I bought it brand new from Kia. They are telling me Liquid Capital will never pay for issues with my exhaust pipe. According to the mainatance plan this is covered on my Maintanance plan. I spoke to a very arrogant and rude guy called Sudar Suleman who says he is the maintenance manager and the other lady who was talking to me assisting with the service and diagnosis was very rude. I need Liquid Capital and Kia to sort this out because according to the maintenance plan this is covered.