AVG Tuneup says I'm running an illegal copy

Hello Mara,

We would like to check the version of tuneup that you use and the code that you have purchased.
Hence, an email has been sent through which you can provide the requested details.
Thank you.

I just received a pop-up message stating that I am running an illegal copy of AVG Tuneup and that my copy will expire in 7 days. I want to know how this is possible because I purchased it from Wal-Mart because it came with the virus protection. 
 
Thanks!

Hello Mara,

We would like to check the version of tuneup that you use and the code that you have purchased.
Hence, an email has been sent through which you can provide the requested details.
Thank you.