INCORRECT BILLING NOT GETTING SORTED OUT!

I have upgraded in December 2018. Vodacom had a special of a promo line, that you get R60 worth of airtime, and you do not pay for that line. The vodcaom consultant was so nice and helped me so nicely. First the docs i had to signed showed that i will be billed for the line, which one of the salesmen there said we must just cross it out, it will be corrected upon activation. Since then it went downhill from there. They are billing me every month for that line, they are billing me for the insurance on all my lines (i also requested that i do not want that). Every month i have to contact the consultant and ask her to log a call so that i do not get billed. They promise her it will be rectified. WHICH JUST DOES NOT HAPPEN. I keep getting billed for it every month. This is unacceptable and *****, they advertised something for free, which i have to pay for now. I want someone to call me and delete that billing on my account as soon as possible. This is very poor service from Vodacom and they are being sly now.