Access your canceled account
You can access an account you've canceled at any time by signing in to the account at adwords.google.com with the email address and password you used with your AdWords account. If you can't remember your username or password, click Can't access your account? at the bottom of the sign-in box. Either enter your email address to reset your password or click Forgot your username? to recover your account's email address.
Once signed in, you can view your past account performance, check your billing information, and even reactivate your account. Signing in to your canceled account will not restart your ads or cause you to accrue costs. However, if you resume your ads, you'll reactivate your account and begin accruing cost again.