Harassment and sms threats

Please help. This is an unreasonable action by attorneys office Stanley Brodkin Maditsi attorneys. I receive calls daily from 10 different numbers from the same attorney regarding my Standard Bank account even though I did sent a Richard Oosthuizen an email stating that I lost my job and that I dont have any money and that I will send him an affidavit confirming this as soon as possible. But still they have the audacity to send me sms threats threatening me with legal action and the sherriff and they do not even know what my circumstances are. What this company is busy doing is total harassment. Can they please stop this for I will instruct my lawyer to start with action against them.