i go to http://amd4u.com/getbattlefield4 and enter my coupon code and it says UID is not valid , i contact and they reply
According to our database, your coupon code is valid.
Please redeem your coupon code at http://amd4u.com/getbattlefield4
Let us know if you have any question or concerns.
For a faster solution, please visit www.amd4u.com/radeonrewards/faq for frequently asked questions.
For more information, please visit www.amd.com/neversettleforever for full terms and conditions.
but i tried again and again , it still not worked please help.