The filing of a Dispute Form is part of the chargeback process defined by VISA and Mastercard. It is required for each and every transaction, however, in the case of an airline bankruptcy since the dispute form will be alike in each case, we will do much of the work for you. We would simply require one signed form, and an excel sheet with the details of each transaction. We then have a process to replicate the Dispute Form for each and every transaction.