Contacting me year after year for prescribed debt

<p>every year i keep getting contacted for prescribed debt that is probably around 12years old, i am not even aware of the debt, no one has called me or contacted me, and now MBD harras my husband and me continioulsy, stop this immedately else i am going to take legal action against you</p> <p>Client Account Number: ********** ********** 76109<br />MBD Ref No: ********** ********** 71<br />______________________________________________________________</p>