pathetic and appalling service

My phone refused to switch on and i took it to TELKOM @ Carnival Mall on the 17/08/2017, as i've only had the phone for 8 months i believe it should still be under WARRANTY They booked it in and told me i will receive an sms to update me on the repair of the phone, On friday 25th of August 2017 i received an sms stating that my Iphone has been deemed out of warranty and has been quoted for R6054.20 incl VAT 1. They never stated what needs to be replaced and why but they want to quote us big numbers I went to the store and complained and they told me they don't know anything about this quote as it is not reflecting on their system YET and the consultant gave me a number to contact for the repair centre ********** 085. WOW, the service received was appalling with their uns****ed agents who had the audacity to tell me they DON'T KNOW why i was quoted what i was quoted, but is written on the system and their job is to tell me what's on the system WHICH is what i know hence i called, The agent i spoke to was Ntsako Shabangu whom i asked that she transfer me to a Supervisor or a manager since she was clueless and she transferred me to another agent who was even worse and didn't know what he does at work and who his Manager was I mean we pay a lot of money to be treated like this or partake in this ****a shop you guys are running, i am looking for assistance not to be told 'I DONT KNOW' I asked the agents what is it that i need to be paying for and they said the FAULT DESCRIPTION says broken screen when the form in front of me FROM TELKOM says FAULT DESCRIPTION: NOT SWITCHING ON, so who cracked my screen because it's definitely not me and someone NEEDS to pay for it, i explained to the agents that the only thing that had was slightly cracked was the SCREEN PROTECTOR so if I were to fit in another one the phone would be fine which I believe it has nothing to do with the phone not wanting to switch on This is really appalling and unacceptable, I need feedback and someone needs to pay for that screen because i didn't break that screen or you guys will hear from my Attorneys