Do not want to assist with repair quote

I submitted a Samsung Tab 3 in May 2015. Battery did not want to charge. Due to the strike nor me or the Shop in Bela-Bela could get hold of anyone at MTN - not even the head office. In the week of the 30th of June I again visited the shop to ask for assistance. The sales agent called and advised that a quote was sent for repair. The assistant that booked the item actually completed the job card incorrectly and did not submit my proof of purchase (July 2014) with the item. I was advised that I needed to pay R380 for the item to be sent back to me. <br> <br> Upon further investigation and endless calls where the phone was just put down in my ear, I asked for the quote and the technicians actual report on exactly what was the problem on the tablet. <br> <br> MTN is not prepared to re-asses unless the R380 is being paid. They will then re-book it on the new date -I was advised that the same quote will apply because it will now be booked in August and the guarantee expired in July 2015 <br> <br> No one can help me. No one is prepared to even talk to me. I have my proof of purchase and they do not want to accept it. <br> <br> What do I have to do now? I am furious!