Unhappy customer

I first wrote a review on the 3rd December regarding the bad service I'm getting from Vodacom SA. Vodacom responded and said someone will give me a call soon. It's been more than 7 days. All I want is to be refunded all the money that has been debited every month from my account. Because I'm not getting any service from them. My router was taken on the 15 of April for repairs. It came more than 3 times with the same issue. It's December and I still don't have it back. No one is calling to update me or anything. I'm the one who always drive to them to find out what the hold up is.