Hi,

This could be an instance of email spoofing. Can you check the headers of the email for any domains that look suspicious?

What did the email say exactly? Why would a spamming domain be suspended in 72 hours instead of right away?

If it actually is a legitimate "notice" and not email spoofing, you can try them on Twitter: https://twitter.com/Google

Google has been responsive pretty much every time I have needed them, which is impressive. I tweeted a few days ago, not even tweeting "at" them, and they got in touch: https://twitter.com/jugurthahadjar/status/143051010590950195...