Unfair/urgent

<p>well, its time for my upgrade at vodacom. But they dont want to upgrade me to the device that i prefer.</p> <p>i have tried to comunicate with them, no luck.</p> <p>i spend way more the my contract value and pay every month.But still Vodacom did not want me to upgrade to my prefered device. I have now change my network profider and have already recieved my new phone with no hassels.</p> <p>i would like to know how i can cancel my contract indefenite with vodacom. Please revert soonest as my time is limeted to cancel the specific number.</p>