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credit advertisers for invalid traffic accrued 60 days prior to the date of investigation. Once we complete our investigation and begin processing the credits, it may take up to 30 days for the adjustment to appear in your account.
So that means that the invalid activity could be as much as 90 days old by the time we see it
My view and, I suspect those of the majority of publishers here, is if we don't "fairly" protect the interests of Advertisers, then we don't have a fair "long-term" AdSense system which advertisers can have confidence in and, then that adversely impacts upon all us Publishers.
In real, relative terms, I've been reduced "pennies" each month, like who cares?
[edited by: jabas at 10:12 am (utc) on Sep 13, 2012]
Having said that I also moved to adsense for the last 2 years due to sheer laziness. Adsense is convenient! just set and forget and I guess that is what Google counts on.
Recently there was a thread here about a negative balance.
I wonder if that could be caused by the 90 days timeline?
Interesting; I used the new support options to ask about this because it was listed as invalid activity. And as far as I know, I have no history of invalid activity. After several exchanged emails, I was told the invalid activity wasn't on MY part, it was on the advertiser's (like for example if they were using a stolen credit card or hijacked AdWords account) And they had to do an investigation, and that's why it took so long, but they had to give all the money back to the advertiser, so of course Google doesn't get paid and I don't get paid. They also mentioned that they are working on better messages to explain what the adjustments are for when they occur.
They also mentioned that they are working on better messages to explain what the adjustments are for when they occur.