Thank you for your support to TinyDeal.
We can make exchange only before shipping. If you buy wrong item or the item out of stock after your purchasing,you can contact customer support to make exchange.
Please send email with the following information:
Reason:(original item model) out of stock/wrong items and replacement item model.
We will make exchange for you immediately only if the replacement item is available.
You are responsible for the possible price difference. It also takes time to exchange.
Any question please contact us by Customer Service Express: http://help.tinydeal.com/contact-us