When will Telkom's BAD service stop?

I took out a contract with Telkom 11 months ago and things were good for a while until they overcharged me. We got passed the billing issues and now it's something else. While on a call the handset i was using suddenly got hot in my hand and ear. I then put the phone down and the screen fuzzed out and the display was completely off after that. I then took my phone in for repairs 3 weeks ago and got confirmation that the phone was booked in. But i got an sms yesterday saying that i have rejected a quote they sent me (I did not recieve a quote by the way) and that i need to pay R189 for the assessmwnt done on the phone. Now i know for a fact that the phone wasn't damaged as a result of negligence or any other form of physical damage, yet i'm being quoted for repairs to be done on a phone which is still under warranty. <br> Telkom have put me through too much grief for too long and i'll be taking this up with the Ombuds.