Constant Harrassment

I am being harassed by MBD, for an account that has prescribed, according to the Prescription Act 68 of 1968.<br> After numerous phone calls and e-mail correspondence, and after the last phone call turned into a shouting match by the arrogant call centre agent, I have now had it.<br> After sending them mails, asking them to prove that the account has not prescribed, I still receive phone calls and mails and I am being harassed.<br> This is my last resort, before laying a formal complaint with the Council for Debt Collectors, as these people do not bother to read their mails, nor respond to them.<br> Please get your facts straight and leave me alone!