Pathetic Service, feedback and delay

I sent in my Samsung S4 with broken screen to the Samsung brand store Brooklyn Pretoria on 22 June 2015. The said as it is under warranty they will fix it in two to three weeks but I need to send them my proof of purchase. I therefore got a proof of purchase from Cell C and emailed it to The Samsung Brooklyn store on 24 June.<br> Three weeks later I phoned the repair centre to find out what is going on. They said that there is a quote for R1700, I rep**** and said it was under warranty when I gave in my phone, they apologized. A week later I phoned again and they said the same that there is a quote for R1700, irritated I told them that it is under warranty. I phoned again 24 June more than a month now and they said the same thing I told them I did sent the proof of purchase and they must sort it out. I phoned again 30 June and they told me that the contract is not valid as it is in Word but it the exact contract I forwarded them from Cell C, each time I have to phone and they never call back. I phoned again another three times will no avail. This is absolutely unacceptable