Bad customer service

<p>Last year I took n upgrade on my contract with Mtn Jabulani Mall for an IPhone 4s device which was on promotion for 129 on the 5 may 2016 I took it back as it was overheating and still under warranty but to my surprise yesterday I was told the warranty expired on the 25 may 2016 of which it was in their possession since I took it back to them on the 05 may 2016 n never received it back and according to my knowledge the decive is still under warranty n it does not even have a year since it upgraded with it and if that's how they want to treat me they can keep their device n cancel the contract since I value the money I work hard for like them as they don want to give me proper service and mtn should train their consultants well to be able to view contract history n not come n tell me the nonsense they are telling me now. Makola Jimmy Mothiba ********** </p>