I have only used groupon once. I will probably never use it again after this. I found a great deal on adult coloring books, 4 for the price of 1. I put in my order and patiently waited for it to ship. Somehow the street name was input incorrectly (either my error or whatever), so my package was marked undeliverable and sent back to groupon. I contacted their customer service and was told that they do not reship items. Instead I have to wait 10 days for a refund so I could reorder the product. Problem is, the sale was only good for 3 days and the product sold out.