Dragging their feet

I upgraded my contract on the 27th May 2015 and was meant to recieve a free service for calls if i call on the same network. I contacted the call centre when i found out this service wasnt activated which was on the 29 June 2015. I was told by the agent this would be sorted out with 72 working hours. After 2 Weeks i called to do a follow up as i had had no response and was told i would get feedback by that afternoon. I then called again on the 21st of July to follow up as once again nothing had conveyed to me and spoke to Sydney Dube who informed me that Lambert Makova was handling this and he was meant to have sorted it out as it is not meant to take this long. on the 22 July i called again to do another follow up and spoke to Tumelo Madisha who clarified a bit of what is happening and when i asked him when i should expect feedback and a resolution he told me towards the end of the month 29 July to be specific. Now something that was meant to be rectified within 5 working days has taken about a month.