Charged me another premium after I've cancelled my service!!!!!!!!!!!!!!!!!!!!!

This *****ulent company has just charged me another premium, a month after I've cancelled.

To be clear, I have already cancelled my Discovery medical aid, but they still charge me. What recourse do we as citizens have against companies *****ing our money? Very frustrating that we need to plead with then to not take our money and cancel our service, but they can continue charging us without recourse.

Rather sign up with another medical aid, that won't charge you again, after you have cancelled.