The worst customer service I have ever come across

I settled my Foschini Account with this company on 30 April 2015 after which i called this company for a clearance letter. I have been promised more than ten times since then by different people that i would get the letter, some promising the same day, some the following week, with no real explanation of the process and how long it takes. eventually I requested to speak to a manager and spoke to Charlene who promised about three times that she would send it personally. From being **** to by agents saying there are no supervisors until I made the threat to report them, then magically there was a supervisor I could speak to. Today I called three times, spoke to Ashley Tom, who confirmed that the clearance letter was only requested on he 11th, so all along the people who told me they were sending the request were lying. Rene Meyers dropped the call while I was speaking to her. HOW DIFFICULT CAN THIS BE? Faranaaz said she left a note for Charlene to call me back, but I had to call again and spoke to her, so after a promise Charlene made she is not available any longer. This is such a shame...