Back button scripts now banned?

I was just starting to get my first break even campaign and I try to log in to my PopAds account to a message saying my account has been suspended due to violation of terms.

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So I email them:
Hello,
I tried to log in to work on my campaigns but the log in screen states that my account has been suspended due to violation of terms. I’m confused as to what I have done? I never got any warnings. Some help or clarification would be appreciated.
Thanks,
Eric

Response:

Thank you for getting back to us. Your account was banned for fraudulent activity. We place a lot of emphasis on ...