Debiting on a cancelled item

I recently joined Discovery and we got free vitality for 3 months in that time we cancelled the subscription now they are still charging us for vitality after we cancelled .Discovery asked us to contact the Employer and the employer confirms we need to contact Discovery as they are charging incorrectly, please immediately pay my funds back ,Not a good way to start a membership , I have spoken to 4 different people and no one can assist its just waiting and waiting which is adding to my Frustration. Member number ***. Your consultants tell me they have limited assistance and theres not much they can do .A big 0 for service delivery