Poor client service

I have been signed up for that Clientele rewards perks thing. I did not approve a debicheck mandate but when I checked my debichecks it was already approved. I cannot get anyone from the call centre to cancel this thing and I really din't want it. I don't need it. I must say, I am highly disappointed with the service I got and would NEVER EVER EVER recommend Clientele to anybody!!!!! I was told that it would be cancelled and that if I was debited, the money would be refunded into my account, that still hasn't been done and I am now struggling to get through to anybody who can assist me.