No reply feedback on any contact made

On the 29 May 2015 I visit MTN Century City with a faulty ipad, , need cable cannot book it in. 1 June same store , no go to Montugue gardens repair store . 3 June visit Montugue gardens no sorry contract term have change ??? 01 June I wrotte to customercare ref ***9 . No feedback no contact. 10 June N1 city phone waiting for supervisor to return , no feedback no response . On 29 June 2015 send e-mail to complaint req *** ... no reply no response no feedback. Today still without operating ipad , paying monthly R 419 for no use My contract have a 24 month guarantee.