Constant Issues

I am so sick and tired of Vodacom. Not only are their tariffs so high, they tried to retain me in May when I wanted to cancel the contract and managed to lower my monthly payment amount by a few Rands and ensured me that I can still upgrade later in the year. THIS WAS A LIE. I upgraded to an Oppo - the phone froze the same day - it's been in for weeks now, they have been struggling with the Google lock but refuses to let me exchange it for another phone ALTHOUGH I returned it within 7 days and the same model was NOT ON DISPLAY for me to test.