Cancelling of contract

Generally I had a great experience with Vodacom. Now things have taken a turn. I recently moved to Canada and before leaving cancelled my contracts via the call center (they were both already completed so no outstanding money). I'm just looking for confirmation from Vodacom that this have been processed, but I'm not getting any feedback from the customer care e-mail address, and the chat function consultants just ignore my chat when they figure out I'm not there to take a new product. I've been struggling for days to no avail. Can someone please come back to me?