New Credit facility a total lie

on 08 February 2016, I responded to the bank's request to visit the branch and update my multi loan, the lady who called was from JHB eloff street branch and informed me that I need to update multi loan to the new credit facility by 29 Feb 2016, she informed me that the new credit facility only charges you R28.00 for any amount transferred, I visited JHB Kerk street branch and the consultant who assisted me gave me the same information, she advised that for any amount transferred i will be charged R28.00 and this is applicable for 6 months, I accessed the amount of R1100 and to my surprised i was charged 257.00 interest, I made enquiries I have made quite a number of enquiries regarding the wrong information given to me by a consultant via the ineternet client care centre and i was then given the correct information regarding this, i was obviously not happy as i have not budgeted to pay extra 257.00 and i was informed that the branch and area manager would contact me but to date i have not received a call or email, so does this mean i will suffer for lack of knowledge by consultant, and is my query not important enough that i have to wait 15 days for a manager's call?