Contract terms not honoured

I signed a contract at Fourway Mega gym, with a sale clause included to state that once the contract expires, I may attend thE gym at R20 per visit with a minimum of 50 visits per year. My contract has expired end of Jan 2015, so wanted to activate option. But all the sales consultants want to sell me is a batch of 50 visits at R2000, this is over R40 a visit. Does Planet Fitness just ignore contract clauses as and when the please and also not communicating changes to customers (breach of NCA!!!!) Please can somebody correct this as I have signed contract with clause and will approach the small claim court for breach of contract.