Harassment from Sales staff

Hi,<br> <br> I just received a call from a Sales Person on *** - representing Mr Price Mobile, selling me a R79 montly product. I advised him I was not interested and he continued to persist. He would not take no for answer and continued to harass and antagonize me. When i asked him to end the call, he refused. <br> <br> I didn't appreciate that from your staff and this has definitely left taste in my mouth.<br> <br>