Dstv is taking my money but fails to provide servicesl

It's exactly a month since I reported that the dstv router is not working and you not even sending my monthly data but you're deducting money from my account. You've deducted money in March and also now in April for dstv internet that is not working even after I've called you numerous times and reported you on hello Peter you still haven't fix the problem but you're still deducting money from my account with no fail but you're faling to provide the service that you're taking money from. Everytime you're telling you look into it and get it fixed month later it's not fixed you still take money . Please tell here what must happen when service is failing honor contract agreement but still charges customer for service that they failing to provide, what must a customer do since I've reported and called but you do nothing but just take my money, what steps must I take cause I can't pay for a service I'm not getting.