We’re sorry to say it can end up being a big problem. Symposium services are based on predetermined schedules, and scheduled times are agreed upon at the time of your purchase. Showing up, and doing so on time, is required. We have instituted a 24 hour late cancellation policy to give users plenty of time to make adjustments to their schedules. Once that period is over, there is a late cancellation fee of 50% of the listing price, and a no-show fee of 100% of the listing price. As soon as a SymTalk or SymGram begins and the Host has joined, you are responsible for paying for the entire Hosted Duration up to the full listing price. You may show up late, but if you arrive past the halfway point, the Host is no longer required to be there, and you are responsible for the full listing price. We apologize to our more schedule-challenged users, but this is the only way to make sure that Symposium remains a trustworthy platform to Hosts and Guests alike.