What reasons are they giving for these slaps? The "improve your landing page relevancy" bs? Because the problem could just as well be what you're promoting (the offer), not how you're doing it. Their reasons are often too vague. Talk to some of their chat representatives and make them tell you the real reason you were slapped.
I have experienced first hand and heard from both other affiliates and AMs that Google really doesn't like CPA "free trial" type offers these days. (The ones that require the user to pay s&h).
I can say from experience they don't like (certain) zip submits. I had one pulling $1500 / day with about a $650 daily spend and google pulled the rug right out from under me. Took weeks to get it to that earning/traffic/cpc level.
So I set up a new domain. Bam up and running again but no where near the volume. Right as I was approaching $1500 again, bam slapped again.
Kept repeating the domain swap and it was working, but now they're slapping so fast (1 week) the profit just isn't there.
I chatted with an online rep and she was clueless, never gave me a good answer. Said she'd get back to me. Also emaild them, and the email was completely ignored! I'm afraid to call based on what they'll do to my account.
Only thing I can assume is they don't like my offer. What kills me is I see a few dozen other people running it, but I guess they're doing the same domain swap that I am. Only one competitor has held through w/o ever changing the domain. No idea how he is doing this.
I was using a 'thin' landing page, but the site it was on had lots of other (bullshit) related content that I wrote myself. The landing page did link to the other content. Didn't seem to make a difference. My competitor that survived has ZERO content.