Worst service ever at jabulani mall

1st week of November 2017 I went to jabulani mall at sportscene to apply for a credit limit increase, I filled out a form and they faxed it, I was told I should wait for a response. After a week I called the customer service to check if they got my application, I was told my application have been received but its not clear, so I had to go back to the store and apply again, I did so and after a week I called again, they told me they didn't receive any form, the third time the information was incomplete and I went back for the fourth time this Tuesday 02/01/2018 filled out a form, it was faxed and they called the customer service to check if they received the form and if it had the correct information, then they told me everything was sorted....when i called the customer service today, they told me the information is incomplete again, I should go back to jabulani mall again, told them I can't because I'm using my airtime to start with and its for the fourth time now...then the lady from the customer service suggested that I call the sportscene and explain the problem, I did that and the guy from the sportscene said he will fix that and fax it, after 3 hours I called the customer service to check if they received the new form but they didn't.....so I'm angry i've wasted my time, energy and money and also going from pillar to post