MBD Constant harassment on nonexistent /prescribed debt

MBD has been harassing me day in and day out for an account that does not exist. I have contacted all credit burea's and this does not exist. I paid all debts owing to ABSA in 2011. MBD then started contacting me in 2015 looking for payment on an account they apparently bought from ABSA in 2009. I wrote a complaint on Hellopeter to ABSA then as well as telling MBD that this did not exist and i did not hear anything else from them again until fast forward 8 YEARS to June 2023 i start getting the constant calls, messages etc from them looking for money again for the same. I mean come on, even if this so called debt did exist it would have prescribed in this time so For the hundredth time REMOVE MY DETAILS FROM YOUR SYSTEM. and stop harassing me for money that is not owed!!!!!!