Customer made to pay for repairs- on Warranty

Hi <br> I have upgraded to Iphone 6s NOT more than 6 months ago. The upgrade contract states that if the phone fails during that time, MTN will repair the phone. I took the phone in for repairs. I am told to pay for repairs (phone not done yet- I am advised Find my iPhone should be turned off - which incurred a rejection fee)<br> <br> The problem is the phone touch is not working.I couldnt turn this off even on icloud. I advised the shop when I took the phone in. Now my phone is being sent back to me to deactivate find my phone - and pay rejection fee. Now I am not able to access find my phone due to touch not working.<br> <br> The shop assistant advised me that Mtn changed the clause in the contract and MTN, no longer covers repairs for phones acquired less than 6 months. Now I do not understand this as my contract clearly states the opposite. The receipt issued when the taking the phone for repairs refers to payment by customer for out of warranty phones.? Please advise what this means for me as a faithful MTN subscriber ?? Must I pay for repairs? Is the clause in my contract not applicable? How am I expected to turn off find my phone when the touch is not working and ICloud not helping?