Change bank details

Good day<br> <br> I changed my banking details at the end of January. Payment was debited for my Box Office account. this month I now get an SMS telling me account unpaid. You offer the self service online and yet you cannot get my account debited? My account has now been suspended due to serious incompetence from your Box Office accounts department. <br> I want this rectified and expect a call ASAP. <br> I called the call centre and spoke to Cheslyn who put me on hold and has never come back. **** service for a premium price I guess.<br> <br> Seriously if you going to offer online self service then at least ensure it's updated on Box Office side as well. Please re debit my account.