I took a contract with MTN because I was tired of recharging my *** number, I got 2 MTN sim cards

I took a contract with MTN because I was tired of recharging my *** number, I got 2 MTN sim cards.the company decided to allocate my initial number *** to someone else without my concern unfortunately they violated my right to privacy and the POPI act as that number is linked to everything I registered and now on the 9th I called them to alert them on this matter they went on to hand my details inclusive of my Vodacom number telling me I have a contract I did not pay while my initial call to them was to alert them that the people or person they gave my number to *** has hacked all my social media platforms ND my private details. They did nothing