Once you’ve placed your order, the offer you were given is locked in for 14 days so you have until then to get the item to us (Shipping times are usually 5-7 days). That is why it’s important to ship it out to us as soon as you can! If a device is received after 14 days from the order date no worries, we would simply look at the most current offer for that device and send that amount instead of the old offer.