Contract Cancellation that never Happens!!!

Vodacom is the absolute worst company to engage with!! I have been living in London for the past year and they have committed ***** on my account making it impossible to cancel my contract with them!! In November without my knowledge someone **********ly renewed my contract for 24months. So when I returned for a few days in January and tried to cancel it, they said an investigation needed to be launched and they would only cancel my account after that!! It's not my problem your team is a bunch of ******, its yours!! Then after going into the Vodacom Brooklyn store where they said they couldn't help me, I phoned the call centre. I was leaving the next day and needed it to be sorted out immediately, a quotation was raised for my cancellation and they assured me that the next debit order would be the cancellation fee only and this would be the end of my contract. The debit order came off yesterday and they charged me again for the contract amount!! When I phoned FROM LONDON to query it with the reference number of the quotation, they told me someone cancelled the quotation for cancellation!!!! This is ridiculous, I cannot keep phoning just to be **** to by your dishonest and ******** employees!!! I hate this company!!! Get my account sorted and get your company sorted!!!