PATHETIC SERVICE

I have 6 different numbers on my Vodacom account and want to cancel one. No matter what I try, it seems to be impossible. Many calls and hours wasted, been to a branch .... nobody is capable to cancel a contract that has reached it's end date already. Every time I phone the cancellations department, they assure me that it will be cancelled, but this never happens. Not even at a branch could the agent succeed in doing this. I sincerely hope that someone capable of handling this simple request can read this and help me, since their whole cancellations department is apparently incapable of doing what they are being paid for.