Mweb ********l deductions and call center not available

I am extremely upset with Mweb.. I had an account with them more than 2 years ago. Which I canceled. For no reason they started deducting from my bank account ago the beginning of this year. I did not notice it in the beginning because the amount was the same as my current provider.. This month both increased by different amounts and that is when I noticed it. What upsets me is that I spent the whole week trying to get through to their billing department. I was on hold on more than one occasion for an hour at a time without any success. I phoned the other departments as well.. They tried to put me through but also this was in vain.. The bank cannot reverse the deductions and recommend that I replace my bank card to prevent future deductions but affecting of my other deductions. I will also loose the ********ly deducted money of the past 3 months. I think it's a disgrace that they can do this to others and not have a proper functioning call center that one can reach to resolve such matters.