MISLEADING INFORMATION

I have had my credit card with African bank for a while now, last year they contacted me for a limit increase which i agreed on. Upon my visit at the greenstone mall, the consultant who assisted at the branch asked me if i want to take the staright option or the budget option... she tried to explain what budget means to me and i didnt understand so i told her ill take the straight option but ill do research as to what budget means and i'll come back to her once i'm confident to change my straight option to budget. To my surprise today, i called the call centre to ask how i can go about changing my credit card option of straight to budget, he told me i must go to the branch and theyll assist me... i then called the greenstone branch wanting to find out the same thing, i was told there was no options concerning theyre credit card/s... i even gave her the name of the lady who assisted me that day so i can speak to her personally... she said that lady left last year already... now i'm stuck and unhappy with how i got mislead by african bank... if i knew that they don't have the option of budget like the other banks i wouldve done things differently... very angry customer...