Vodacom service is disgusting

If i could add a minus I would. I have tried to cancel my contract and I am on the 3rd attempt and the agents just refuse to listen to my needs. I am on the line for 16 minutes and still holding for this simple process!!!!! I have a job to do and whilst Vodacom isnt able to do their's i am losing my time and patience. Instead i am asked to rate their service and they won't accept the poor rating I am giving!!

This is extremely frustrating!!!!