Refusal to cancel contract

We have been members of QVC for close to 15 years buying into the club membership for R18 000 for 20 points. We've been unable to maintain monthly management fees from 2009 since my husband was unemployed and had 3 kids to maintain at school. We requested QVC to sell our membership and was informed that we are responsible to sell it off or go through a broker. After numerous back and forth calls to QVC, we eventually gave up. We have not used the product in more then 10 years, but monthly fees are charged religiously. Since 2011, both my husband and I were unemployed, we informed QVC that we are unable to afford monthly fees and requested yet again, for the membership to be sold. Currently, our membership fees stands at over R20 000 and every second day we receive phone calls from QVC enquiring about payment of outstanding fees. I would like to know in terms of the Consumer Protection Act/ Credit Act, what are my rights as a consumer. I've also noticed that Qvc's response on this site is just acknowledging receipt of complaints, but never solutions or feedback on complaints