MTN ABUSING CONSUMER RIGHTS

I bought a set of Oppo handsets via contract last year in August . The one phone was broken and needed to be fixed . I then logged a claim with their service desk. It took them a whole two weeks to gather themselves between one agent and another that what they needed was a statement proving which handset needed fixing and whether or not it was insured . I then sent through that information , and it took them another two weeks to come and collect teh phone . Then another two weeks to decide that the phone is beyond repair , and then now I am still waiting for repy as to when will I get my new phone - in the mean time I have been paying my insurance premium and my contract premium , and I don't have use of the phone nor the data ... This is completly abusive !