POOR CUSTOMER SERVICE, AGAIN!!!!

I have an active contract with Telkom since March 2015, last week I wanted to add another mobile device to my current contract and was told that since I am an existing member it will take at most an hour. It has been 6 days now and every time I call to enquire at the Kolonnade branch were I made the application, I get no answer. My frustration now is that when I walked into one of your branches, I saw that you had wrong details under my profile on your system and this is a big sign of poor due diligence on your side. I was told this was the reason why there has been a delay in processing my application for another mobile device and that this would be rectified in 24hrs.Again it is now way past 24hrs and still no updates or feedback from Telkom.Is this how you treat your existing clients?