Booking Policy Up to 30 days in advance PGC must have the minimum number of participants attending a private activity. The organizer may expand the minimum number of participants 30 days prior to the activity date. Guests are unable to decrease their minimum attendance after booking their activity. Less than 30 days in advance Guests cannot reduce or exceed the minimum number of participants purchased under any circumstances within the 30-day period. Seats cannot be purchased after the 30-day period and cannot be added on the day of your activity. If at the time of your activity, the number of participants is less than the number of purchased spaces, participants can make the same number of items as the total number of participants. (For example, if you booked a group of 40 and only 30 people showed up, all 40 items purchased can still be made at the time of your activity). Cancellation Policy for Private Hands-on Activities, Tours and Demonstrations, and Private Lessons Payment for private activities is due within one week of the date of booking. If a payment is not made within that time frame your activity is subject to cancellation. For activities paid via check, please make them out to “Pittsburgh Glass Center” with your group name in the memo line. Payment via check must be postmarked within 1 week of the date of booking. If you are planning to pay with a check please notify us in advance. Failure to notify Pittsburgh Glass Center will result in the cancellation of the activity. 30 days or more prior activity date Organizers may cancel their activity and receive a refund, less a cancellation fee of 50% of the total cost value. Organizer has the option to reschedule with no cancellation fee applied. Up to 1 week prior to activity start date No refund is available, but the organizer may reschedule less a cancellation fee of 50% of the total cost value. Activities with a scholarship PGC requires at least 2 weeks' notice of cancellation. You can email us to let us know about a cancellation or call 412-365-2145.