Dishonorable and a Predator

Vodacom is not honorable and is a predator in the communication industry:

Started a new 2 year contract in November 2017 . R248 /m Advised in March 2018 that prices for the contact are increasing without saying by how much. Wrote a letter to them that I do not agree with price increase as arrangement is for 2 years. Received no reply to my communication!! Discussion from call center they informed that Terms and Conditions allows them to increase prices. I covered myself on the contract by stipulating "without prejudice". This means that I do not accept their terms and conditions and that I maintain my common law rights. Clearly this condition was accepted by Vodacom as contract began and was in force. Today invoice received for R296/m This is a 19% increase from the original price. Does this mean that they can continue to increase prices "willy nilly"" ? I will defend this ! Vodacom this is a bully attitude and you are predatory without honor. This is tantamount to *****ing. Where is ICASA who should sanction this company.