MTN BAD SERVICES PROVIDER

I bought an IPhone 7 on May last year at Shop 34, Standard Bank Centre, 291 Church St, Pretoria Central, Pretoria, 0012, the charger stopped working in July and the earphones in November. I bougth chargers and they would just stop working, I then noticed that the device was damaging accessories and it was overheating when charging and the battery couldn't even last up to 3 hours. I took the device back to the store in Febraury and It was taken to repairs and I was told the battery software was updated. Someone from the repairs advised me that the phone was not supposed to go to repairs the first place, but go for warranty assesment and if necessary replaced with another one. I collected the phone, took it to an IStore and the technician did some diagnostics and told me that the battery has to be replaced and he also learnt the phone was overheating. MTN has a very bad service, I'm paying for a faulty device they **** and said the phone was fixed, they did not even update me I always had to call in and check the progress. Even when it got back from repairs they did not tell me, I went to check and only to find it was with them for a week. I told John the mamager that the battery is dead and he said the only thing they can do is to take it back to repairs again.