Copy of contract required

I have tried for the better part of two months to get MTN to send me a copy of my contract in order to have my screen replaced by Samsung. My original contract was with Nashua mobile and I was transferred to MTN when they closed. MTN customer service is shocking and I certainly will not remain a client once my contract expires. In one email reply I am told to go to the store from where the cell was purchased. (This is after me explaining the situation that Nashua mobile no longer exist) <br> <br> Samsung require either proof of purchase or proof of contract and MTN after numerous emails have been less than helpful. Surely they were given a copy of the contract from Nashua? Seriously, what could possibly be difficult in sending me a copy or a letter stating my name, phone, IMEI, ID etc to have the screen repaired?