Up to no good account staff

I have canceled my membership with you the 7th of May 2025. You informed me that I have to pay a penalty fee due to my cancelation of the membership that was not 2 years old, I agreed to the penalty fee and it was never deducted. Then you guys go and hand me over to MBD due to your negligence and now I have to carry the legal fees. It is almost a month that I am having issues with this and it's just not getting sorted I got in contact with the call center and paid my outstanding amount (which was more than the cancelation mail stated). Your call center is up to no good as I have called them 3 times to withdraw my file from MBD and that I am not responsible for the legal fees and I just keep getting calls from them. Even the call center people that I spoke to said that this is unfair towards me as the client, and yet I still get the call from them.