Allow and block ads
Block all ads from an AdWords account
To block all ads from an AdWords account, visit your Ad review center. Hover over an ad from the AdWords account, click the gear icon in the bottom corner of the ad, then choose Block this AdWords account. Updates that you make to ads should take effect on your pages within a few hours.
All ads from this AdWords account will always be blocked. This applies to all targeting types (contextual, interest-based, and placement). Note that blocking ads from an AdWords account may have a negative impact on your revenue.
You can view your list of blocked AdWords accounts by visiting the Settings subtab in the Ad review center. On the Settings subtab, blocked AdWords accounts are listed by account name, i.e., the network or company name of the Adwords account. If you see the account name "Anonymous advertiser" it means that the AdWords advertiser has not specified a network or company name.