Debiting my account WITHOUT authorization

After receiving the amount that my cover would be, I phoned outsurance to cancel the subscription due to the amount being out of my budget range. The consultant then confirmed with me that no money would be deducted from my account. Two days later I woke to over R1000 being debited from my account. After phoning outsurance they required me to send them a bank statement as proof of the deduction- which i did. This occurred on the 2nd of April. Till today I have not received the money. I have spoken to several outsurance representative and not one of them have contacted me back with proof that my payment has been processed. I am a student and cannot afford the time it has taken to handle this situation. This has also left me having to spend my airtime money as well as time that could be more conducive to my studies. Outsurance are not interested in refunding their subscribers, or merely putting interested clients in a position of disadvantage. I am bitterly disappointing by this companies client service.