Vodacom a nightmare of a service

Worst service provider ever I was sent a message stating that I should go in for a contract upgrade note I haven't missed a payment since I chose a contract upgrade in the same price bracket I was told I don't qualify I was requested to email bank statements.sent through till current no feedback to top it all they debited from my account more then the usual remember I didn't receive or change my contact when I enquired through call center I was told that rates went up I didn't receive any sms or any type of heads-up really disappointed....guess I'll be moving over to cell c over the phone they affirmed I qualify for double then what I requested from Vodacom that's wat is called service