Hi Lyn78,
I'm sorry to hear that Graduation tickets sold out before you had a chance to purchase them. We are working diligently in double-confirming, and in some cases, triple-confirming, with Graduates who have purchased tickets to ensure they are coming. If it turns out that some Graduates cannot make it, we can take those tickets and make them available again.
However things turn out, we will have another Meetup + Graduation in the Spring 2016. It's looking like the May time-frame, but it's too far out for us to nail down an exact date.
I hope your most recent ticketing experience hasn't deterred you from participating in the future.
I look forward to meeting you in person and seeing you walk the stage as a Penn Foster graduate.
Warmest regards,
Dan