Worst service

After being a customer for more than 10 years i was involved in an accident and the car is a write off. I called Netstar to cancel the tracker and was told that i still have to pay the balance of the contract because i took out a 36 month contract and bound by it. I was appalled by this as they didnt even consider that i was a loyal customer with them and had not defaulted on a single payment. They also didnt see how they messed up when i took the initial contract with them and my tacker didnt work for serveral months and only when i queried it then they took notice of it and apologised. I asked to speak to a manager and was put through to Hlayiseka Makhubela who was rude, arrogant and had a chip on his shoulder as if he was GOD. He blantly refused to waiver the amount and see it from my side and have spme empathy to my issue and when i brought up being a long standing customer then he offered 20% and when asked to speak to someone more senior he blantly refused and said he is the highest and theres no manager higher. He refused point blank to get me a manager. He then sends me an email telling me he is giving me 20% off and thats it. I responded asking again for a manager to call me and he just ignored that and said management is approving 20% and thats final. I would like to speak to the CEO of Netstar as I have a few questions i would like answers too.