Call Center deliberately cuts my call : ***

I phoned Vodacom Cancellations Dept just before 6 pm to request cancellation of my contract *** which comes to an end on 6 Nov. After listening to a few options I was put through an agent to whom I explained what I wanted. As there was a lot of noise in the background I asked what was going on and was told that the staff are all celebrating because of the coming weekend. After promising to assist me he conveniently diverted my call to a business help number which requested me to input further irrelevant questions. I then realized that he bumped my call as he was ready to go home. I phoned again and was promptly told that they are closed. This is unacceptable. I phoned during operating hours and should have been assisted instead of bumping me. Vodacom must call up the recording to confirm the above and take appropriate action against the staff. I also need Vodacom to phone me to sort my request.