POOR customer service!!!

my wifes contract was due for and upgrade I walked into the MTN store in canal walk next to velocity cars. spoke to the consultant who was helpfull. Left with the item that was purchased. When i got home to charge the phone I then discovered the charging cable is not working. The next day I went back to the store to advise of the faulty cable, I was advised the phone is out of stock and they will get a new phone and advise when the phone must come back to do the swap. <br> <br> I was then told that he was unable to get the phone but will replace the cable from Sony. <br> A week went by and was advised he was unable to get a cable from sony and offered a second hand cable from hes friend. <br> <br> I requested a new cable and was advised I should bring the phone on the 11 September 2015 and said the phone will be booked into the repair center and will be getting the new phone for the latest Monday 14 september 2015. Monday passed no feedback, was advised system down and need to wait until further notice.<br> <br> Today 16 september 2015 I was advised they are busy with stock take and my query will only be seen to next week.<br> <br> I find this very unacceptable customer service.!!!