Renew Subscription

I recently received an e-mail that my AVG Internet Security was automatically renewed so I put in the new license number and it will not accept it.  I have Windows 7 Professtonal.  I have tried this numerous times for the last week.  I am also getting reminders on my computer that my AVG account  will expire in so many days,

Hi Deb,

We will help you to sort this out.
We have sent an email and requested a screenshot.
Please revert to our email without changing its subject.
Thank you.