Using Google Ad Credits
Google AdWords credits are included in Annual and Two-Year subscriptions of Enhanced and Pro packages only.
How to redeem your credits
Once you’ve set up your Ad Words account and entered your billing information, you can redeem your coupon using the option to “apply promotional code.”
For more in-depth instructions on how to redeem coupon codes, check out this article in Google’s help center for AdWords:
- “How to redeem a promotion code”
IMPORTANT: Ad Credits can only be redeemed on newly-created AdWords accounts (fifteen days or younger).