Harrassment by collections agent

My account is in arrears with Wesbank, i recieved an sms on the 29th of July 2021 that my account has been handed over to an external agent and on the SAME DAY an agent called me requesting my address so he can come pick up my vehicle.. The harrassment, tone and threats given were unbelievable he even went to the point of contacting my father at around 7pm in an attempt to come retrieve my vehicle. I am not a lawyer but surely this is not how reposession works. I am frightened by the man, i have given him my residentail address and fear that he will show up to ********ly retrieve my car. As a women in South Africa,i am fearful following the threats and bully tactics by the "Collections guy" who called me from Wesbank. If this is how you treat customers, there is no regard for following procedures..