To put it simply, you will not get a refund if you choose a product with a lower value than the one you previously purchased.

If you decide to go for a product with a lower value, you can simply split your store credit coupon into two different amounts. Just let us know about it and we'll give you two coupon codes, one to buy your product and the other to use whenever you like. Remember, a store credit coupon never expires, it lives on forever.