Jet retail store - unprofessional and useless

Two subscriptions added without consent on our retail account. Namely ER24 and cell c airtime subscriptions. I've been trying to cancel these two subscriptions for the last 6 months via jet call centre, twitter and email without success. We get promised that in the following months statement these subscriptions will not appear but without fail these subscriptions are still charged for on the following months statement. We get told our query has been "escalated" or the cancellation must be done through third parties. When I contact the third parties they tell me they do not charge for their contracts in the retail account and I must contact jet to do so. I'm frankly frustrated and furious that subscriptions just get added on without consent but it's hard to cancel things on our accounts. You find it easy to ask for money but not to attend to requests from clients. Its disgusting behavior and unprofessional. I want to be reimbursed and subscriptions cancelled.