HARRASMENT BY THEM AND NOT A CLIENT

I am not a client of BIDVEST BANK but my x husband was. I have been harrased by bidvest legal department for no reason. Their legal department from vehicle finance has been making contact with people on my facebook profile. They have been slandering my name on Facebook and have been getting a friend to phone me and some of my facebook contacts and pretend to be a police officer. After being caught out on TRUECALLER they all started ignoring my calls. Being harrased and not even a client is sick. Going onto peoples facebook profiles is even more sick. Slandering and threatening people is sick. This must be taken further.