Early debit throwing my account in a negative impacting my credit score

I since complaint about MBD debuting my account quite early as result putting my account on a negative and this drops my credit score. They corrected their behaviour last month only. They are now tracking and trying to debit my account since last week. I get paid on the 28th, why on earth would you debit my account on the 1st week of the month when your last debit went through? My account is now on a minus R609 thanks to you and still expect me to pay you? You are ****** and I will get a lawyer if I may be. My last telephone complaint was why are you debuting my account earlier than the date I specifically gave? I don’t suffer from memory loss. Fix this **** or we will meet in court!!!!!!