When do invoices need to be paid by?

All invoices must be paid by Friday, January 31, 2020 or the registration will be deleted. Registration prices increase on January 18, 2020 and again on February 28, 2020. When you satisfy payment, you will be charged the current registration rate. You are not locked into the rate listed on this invoice. Prompt payment is encouraged to avoid additional fees. View registration rates and deadlines at www.spacesymposium.org.

Space Foundation is a Colorado IRC 501(c)(3) corporation. Employer Identification Number (EIN)/TaxID is 31-1653556
If you feel this invoice is in error, please contact Customer Relations at 1-800-691-4000.