On which tab can advertisers see credits for invalid clicks within their AdWords accounts?
- My account
The correct answer is:
Explanation: If we find invalid clicks that have somehow escaped our automated detection in the past two months, we’ll give you credit for these clicks. To view these credits for invalid clicks, click the Billing tab. Any invalid click credits you’ve received will be labeled “Invalid activity” on the transaction history page and will be credited to you.
You can read more here: https://support.google.com/adwords/answer/2549113