Been billed over R400 for bank statements!

On Thursday I went to Cresta to get 6 months bank statements printed, I was aware I would be billed,but I thought it would be no more than R100. Today I see Nedbank has taken off 32 amounts of R13 each for these bank statements amounting to over R400!. I am livid. And then I called the call centre to ask about it, I was told that I should only have been charged 14 times as I printed out 14 pages, but that I have to now find time to go back to Cresta branch as they have to fix it there. I've been a client for almost 20 years and this honestly makes me want to close my account!