Incorrectly Charged

I took out a contract with Telkom for a Samsung S6, after 4days the camera screen has shattered for NO reason at all!! I have not misused, mistreated, dropped or even scratched the phone. There are no markings on it whatsoever. I took it back to Telkom within 7 days to have the issue resolved, it was booked in for repairs to which I was told would take 28days!!!!! I have now been quoted R2171 to repair it? This is completely unacceptable as you can clearly see I did not damage the phone. As far as I am concerned it was a faulty camera lense!! Telkom is trying to take the easy way out and just bill the client as per usual. The assistant at the shop would not even listen to my complaint or hear what I had to say. This is completely unacceptable, I refuse to pay that amount of money to fix a BRAND NEW phone that is still in warranty!!!!