No response to complaint re RCP loan

I have been phoning Standard Bank's Prestige line for the past month to try to understand why I cannot revolve on my RCP loan - 1 person puts me through to another department, then the other one says I must call personal loans, and so it goes, I have gone to the extent of logging a complaint, but still no feedback. I dont see why I must pay more for a Prestige account, with supposed private banker, when the reality is that, there is nothing additional that you are paying for, you just get the same ****py service as every other customer of Standard Bank. I have paid more than what is required on my RCP, but still I cannot revolve.