Disappointing Customer

I went to the branch on Monday to fetch my new card and asked the lady to remove the overdraft facility from my account, not knowing or adviced that my statement date will change or I'll be charged immediately from changing accounts. I'm very ungappy and also received my statement today, to see that I'll be charged AGAIN and now I'll be paying much more than what I've been being previously. Could someone please look into this and explain to me why am I being charged more and why am I charged the R69 when I didn't make use of the overdraft section. Please also change my statement date back to what it was.