What is the return policy for items purchased at the LEGO Discovery Center shop? Returns or exchanges are accepted within 30 days of purchase.A valid receipt is required for all returns or exchanges.Opened items cannot be returned or exchanged under any circumstances. Related articles Are there any special events happening at LEGO® Discovery Center Boston? Can I bring my own food and drinks into LEGO Discovery Center Boston? How can I contact the retail shop at LEGO Discovery Center Boston? What is LEGO® Insiders and how can I join? How can I buy a ticket for an AFOL Night?