******* attempt to debit a cellphone bill

My contract with Vodacom ended last year May and then was on a month to month until the end of November last year. Today there was an attempt by Vodacom to debit out business account for the amount of R1320.94. We immediately placed a stop on the transaction. This however tarnishes my credit record for Vodacoms failure to recognize that I don't have a contract in place. This leaves a bad taste in my mouth and will definitely not recommend Vodacom as a service provider.