If you think we’ve debited the wrong amount or if you have a dispute regarding your direct debit arrangement, call the bO2 Corporate Essentials support team on 1300 55 55 33. If we agree we’ve debited the wrong amount, we’ll ask your financial institution to adjust your account. We’ll also send you written confirmation of our actions. If we don’t agree we’ve debited the wrong amount, we’ll give you our reasons and any evidence in writing.