Rude, bully ******* people

This people keep on calling me that I owe R302 from cell c. I tell this person I don't have any contract or had contract with cell c that owe, she then say maybe you wanted to buy something from them. I don't understand that me wanting to buy something means I now owe them. On the 16th of January this rude Xhosa lady calls again with the demand and she assumes that I owe. She ****ed me off when she tells me that you are happy that your ID number is listed and she tells me that you must pay. And then she goes on speaking on Xhosa which I could get bit and prices of what she is saying. And I ended up insulting her because she is rude and very inconsiderate. Please tell these people to go back to their client cell c and stop calling me. I believe these two companies are ******* working together trying to milk us money and turnish our names.