Vodacom client services shocking

Three years ago we took out a contract with 3 phones on it. Two were for phone upgrades and one just for data and calls - no phone. Three years down the line, we discovered that the number for this service, was not ours and we have been paying thousands of rands without receiving any service. Yesterday i tried to cancel that number as it is not ours. What a nightmare? Fours calls, twice i put the phone down as the person did not listen to me and kept reading their scripts. I got so mad having to redo their silly security questions over and over before i could even get to the reason for my call. Well, after being cut several times, having noisy bad lines, i believe this number was cancelled - but not without adding extra charges, and a 30 day notice period as well. This is crazy. This number does not belong to us, never has and we have paid for over 3 years for this already. Still i am being penalized by Vodacom. My suggestion to Vodacom - pls up the game regarding to your client services. Include people who can make decisions that also considers the situation - in my case - paying for a number we did not have. Call centre staff are readers and little insight in anything else. As long as Vodacom benefits every time, they have achieved their goal. Note your ranking - a one. That is shocking. Management should seriously look into situations like this to get the goodwill of your paying clients again. You have lost mine totally.