Jen has written some great advice for those who are suspended from the Adsense program:
‘First, don’t claim that you are innocent – they know why you were suspended, and you will have a better shot if you confess your sins and promise to be a law abiding AdSense publisher. If they know you made a habit of clicking an ad or two every single morning, thinking they would never notice the odd click here and there, trying to deny it will get you nowhere.
And if you happen to get suspended and you really are innocent? Offer to provide any raw logs to aid in their investigation, although it may take a couple of tries once you are suspended to get them to respond about it….’
Great advice (as is the rest of her post) which I echo. The long and short of dealing with the Adsense team in my experience is to be as calm, polite and friendly, honest and accommodating as possible. Remember they have ALOT of publishers to deal with, they tend not to work weekends (or not all of them do) and they want you to make money from Adsense (because if you do they do).
Of course if you’re clicking your own ads or doing something dishonest you’ll be caught eventually (and deserve to be).