MBD - The ultimate in harrassment!!!

I am harassed daily with calls, messages and emails daily. Even when I have made a payment and told no less than 3 call centre staff this, you can guarantee an hour later my phone will ring with another harassing call, another email or two as well as a follow up message just in case. I then get told if I sign up to a debit order all this will stop.... Really? Am I being bul**** and harassed into allowing a debit order on my account, even though I EFT monthly. This is harassment, no doubt about it. I will not have a debit order added to my bank account by a company that is so rude, *********** and unprofessional. I sincerely hope I am not being charged for each SMS, call and email I receive because trust me when I say I will not be paying for this. If I have told one person on the phone that I have paid, and will continue to pay, then why the hell should I be liable for the barrage of correspondence I am subjected to daily! This is not on MBD -get a life and stop harassing people as I see on this site I am not the only one going through this cr*p.