Contract increase

Vodacome has just lost a loyal customer. I have a 12th month contract with vodacome, in which I get a 20gb and 100 minutes and I pay R236 every month, today I get a statement reflecting a different amount which is higher and I call Customer care and ask them why am I given the wrong statement, the lady tells me it’s a right statement vodacome has increased their prices without even notifying us, nw am being told am gonna pay R335 money I don’t have, I will rather just cancel their contract, am sure the prices are much cheaper then the nonsense am getting, am really ****ed off😏.