You agreed by accepting the TOS they can cancel and keep the funds for any reason at their discretion so there is nothing you can do.
Are you 100% certain you did not get non-valid clicks or non-natural traffic?
Most people who have the acct closed always say they are innocent but surely G must have a valid reason as why would they do that without evidence? They do not give the reason because they do not want to reveal their evidence.
Did you buy traffic, participate in a click exchange program, have friends or relatives going to your site a lot, etc?
patroiz said:
They said that 25,000 clicks were invalid, don't I get the report by the Google employer that said that they were all invalid?
No, they will not give you a copy of the employees report.
Wow, that's a lot of clicks. Must be a very high traffic site.
What is the URL so I can check to see if I spot anything odd? If not, can you post or pm your log stats link or image which could easily identify issues.