Each store sets their own policy. There is no law that requires a store to provide you credit of the difference of the price you paid and the new sale price.

However, most stores will issue a refund of the difference or provide store credit for up to two-weeks.

After checking JCPenney’s website I see that most items sold have a 90-return policy, there are exceptions of course. So, if the refuse to give you credit for the difference, you can opt to simply return the item and re-purchase if you so desire.

Remember while shopping over the holidays to save those receipts.