ANZ SHare Trading Problems, page-6

Hi I am screaming. Places an order for MQG at 11.26am yesterday. Places another order for a linked account for an identical order at 11.27am same day. The order for the linked account was filled, the earlier order was not. It scot me $6000 as the first order appears this morning with a date stamp of 22.24 hrs and was cancelled. How can this be explained????? I am furious. What can I do? At least I have a printout of the original orders date and time.