Vodacom ****** Me!!

After numerous complaints to Vodacom falling on deaf ears, I was pushed to the extreme of cancelling my contract after twelve years of service!! Vodacom billed me an additional month because I called in January 2016 and requested my contract be cancelled, it was confirmed that my contract would end on 29 February 2016. On 1 March 2016 I assumed I was on prepaid only to find out that because Vodacom failed to cancel the contract that I must pay the bill because minutes and data have been allocated and that I will have until midnight on 31 March to use the allocation. Today before 6pm I find that Vodacom forfeited my allocation and still expects me to pay for March as well! This is ridiculous. I am very unhappy! I wanted to upgrade to a package suitable for my usage and Vodacom refused me! Then I decided to cancel and they rob and deprive me of what I had paid for. I purchased 1 gig of data and had 286 minutes!! I expect a refund for the device charge and the unused allocation. This being my fourth complaint, I will not tolerate ignorance on Vodacom's part!