It is better not to use advance sales funds to run the event. Fund pre event expenses from sponsors and/or a line of credit. Then if, for some reason, you have

It is better not to use advance sales funds to run the event. Fund pre event expenses from sponsors and/or a line of credit. Then if, for some reason, you have to refund the advanced sales, the money will still be there. Board of directors should insist on such a policy.