Depending on the type of merchandise they sell, online retailers may offer a price guarantee or price matching service to their customers. If you see the item you purchased advertised for a lower price within a certain timeframe, the company will refund the difference. Not all companies offer this buyer protection benefit, so it’s always best to find out before you place your order. Also, certain items are generally not covered by price matching so be sure to read the fine print!
The specific terms of a price guarantee can be different depending on where you’re shopping and how you paid for your order. The process for making a claim is generally very similar though - you will typically be required to fill out a form and provide a copy of your original receipt and a copy of the ad where the lower price is advertised.