unproffessional and poor customer service

a simple upgrade turned into a nightmare. 4 weeks have past and I am still on a waiting list for MTN to get back top me. I requested for the Samsung A7 in the colour gold to be ordered for me cos I was advised there was no stock, I waited and the first week they said it would be instore over the weekend, I called and nothing had arrived. 4 days later I was contacted, advising me the phone is instore, I get there and its not in gold. I was patient enough to wait but it been too long and too frustrating for me to not share my anguish. all calls and effort was from my side, MTN never bothered to contact me and advise me on the status of my query. I called many branches and nobody answers, how ironic for a telecoms service provider. the west street branch is forever offline and what's the use if they cannot help clients during normal working hours. I was also advised that the phone, in gold is not even loaded on the mtn channel. I don't know what to believe and when this will be resolved. who compensates me for my time and money spent calling mtn and following up on something I require from them.