I'm also not a lawyer, but they have the ability to correct the error right up until it's delivered to you - every online retailer has something like that in th

I'm also not a lawyer, but they have the ability to correct the error right up until it's delivered to you - every online retailer has something like that in their T&Cs. There's been plenty of cases where retailers have cancelled order and refunded any moneys paid and customers have had no recourse to enforce the contract. After you've got the goods in your hands - well, there's likely a lot less they can do about it. Some resources for the US here: https://smallbusiness.chron.com/company-advertising-price-wrong-responsible-mistake-73117.html https://smallbusiness.chron.com/company-advertising-price-wr... Changing the price after the fact, or demanding you return it - well... That could end up with them in a whole lot of hot water themselves.