"Dear admatic,
This is our second attempt to contact you. An initial email was sent on April 19, 2016.
We are reaching out to you regarding your AdWords API token associated with account
337-936-7975.
This is a notice to inform you that your token will be disabled in 7 days due to the following:
A high number of the accounts you manage via the API have been suspended for fraud or abuse. If you believe these accounts have been suspended in error, please contact your Google representative or AdWords Support.
If you believe that this notice was sent to you in error, please reply to this email as soon as possible with a brief explanation and we will re-review your case promptly.
Regards,"
I don't know what is main issue.
Please explain for me about email and some rule related with my issue.