Attorney harassment!

These attorneys have been harassing me with SMS's and phone calls for years about alleged outstanding debts. It is common practice among legal firms / debt collectors, to "buy" uncollectable "debts" from institutions like ABSA, and other credit providers, where the purchaser is "given / sold" the option to sue "in the name of the plaintiff" without the proper paperwork and to rely on the presumptions and assumptions of incomplete and sometimes, counterfeit documentation for its Particulars of Complaint.