Constant harrasment

I have been unfortune enough to be the incorrect contact person for one of MBD's account holders that they now need to collect money from for and on behalf of Standard Bank. Apparently SBSA provided my information to MBD and the more I tell them that I am not the correct person, the more they are phoning me. The are misusing my mobile and office number to phone for someone that I am not. They have even gone as far as sharing the client's personal information with me, rending this as an unauthorised provision of personal information to a third party. Pity I can't find the clients cause I would have loved to sue both of MBD and SBSA for this nonsense. I come to such a point where I have now started to share their messages on the "WhatsApp" communicator and constantly licking their a$$3s to leave me alone, but to no avail. So, I have no decided that enough is enough!!!! If there is anyone in this firm who really give a ****… please contact me.... I really don't mind if you are going to leave me alone...