Hello,
Thank you for contacting the AdMob Support Team. A specialist is investigating your issue and will reply as soon as possible.
Our team makes every effort to reply within two business days (Monday through Friday). Sometimes we get a little busier than usual, but rest assured that it's not necessary to send another email about your issue if you don't hear back right away.
We look forward to working with you.
Kind Regards,
The AdMob Support Team