Rentall Agreements / Debit orders/Value of contracts

I am still waiting for Sasfin to repay / refund monies owed to my company JJ PLATES . Sasfin continued billing my account even after the 60months termination date was reached , their rentall agreements , does not have A value Put on them , some contracts even escalates with 15% per annum .I am of the view that Vestfin agreements do not adhere to the provisions if the Competion Act.I demand immediate action and reimbur*****t off all monies owed .