Pathetic Customer Aquisition department

What do I need to do to get an account limit increased? I have had problems with my Debit orders not going off for Vodacom more than a year ago and it was finally resolved last year in August but my account has been deemed a low profile account due to the mess up Vodacom had made. ,I have spoke to consultants at the call center on many occasions and they tell me that I need to go to a store and get them to contact customer acquisitions department .upon the store contacting the acquisitions department, they keep being advised that feedback will be received later in the day, but no feedback is being sent to me or the store, Please can you tell me how many times i have to go into the store before this request can be actioned....I would have thought that once is enough. I find it amazing that a company that is so pedantic with regards to tracking and billing you for every cent used on a data bundle.....cannot perform a simple request like an increase my limit due to an issue which occurred by themselves. I would like someone who is in a position to action this request to contact me urgently, as I want to apply for an upgrade which is well over due to me and currently on special this month!

reference number for Customer Acquisition; 1- ********** **********