Vodacom internet,fibre and router deals

Vodacom took away my right to be informed and my right to chose.I actually chose but I guess my choice was not good enough for them as my contract was upgraded without my consent.according to them it was automatically done by their system.what about my rights as the consumer.I was refunded with R1700 for their mistake but it doesn't count because i am still stuck with a contract i never agreed to plus I'm not even sure why they even bothered as they still billing an incorrect amount that I'm not willing to pay. PLEASE ,PLEASE WHEN SHOPPING FOR FIBRE,INTERNET, ROUTER STAY AWAY FROM VODACOM NO MATTER HOW TEMPTING THE OFFER SOUNDS.OTHERWISE YOU'LL LIVE TO REGRET IT .