A debit order for a service that is still not deactivated

MultiChoice has deducted payment from my account for a service that I’m not receiving. On 23 December 2018, payment was taken after I had requested the service to be temporarily deactivated. Two weeks ago I called several times requesting the service to be deactivated and every time I called, I’m told that the service will be up and running in no time however I’m still not getting any joy, while the debit continues to go through. I’m tired of calling Multichoice no one is able to assist me.