Very unhappy

Final notice before legal action was sent to you. Prevent this: make payment on bought SBSA acc or call MBDLC on ***. *** Good day I received the above sms and have no recollection of an account owing. Please can you confirm what this is and to whom money is owed as I have no accounts outstanding to pay. I keep getting daily calls and senses to pay. I emailed them and no one gets back to me. Please help and stop them harassing me, being the wrong person they are looking for. Jackie