Emails from AVG

I keep getting emails from AVG advising that my protection has expired on 18/07/2015, but I did renew, and upgraded to ZEN with full protection for android devices as well as PC. All me devices report that I am fully protected for 2 years, so please can anybody tell me why I keep getting these messages, and is there anything I can do to stop them? I know I can unsubscribe from emails, but if I do this, I won't get any important messages either.

Hello Peter. I apologize for the inconvenience caused. We have checked our records and found that you have purchased AVG Ultimate multidevice (2 years subscription) in our database. Have you installed any of the AVG products before installing AVG Ultimate on your computer? Please feel free to contact us for any further assistance. Thank you.

Hello Peter. I apologize for the inconvenience caused. We have checked our records and found that you have purchased AVG Ultimate multidevice (2 years subscription) in our database. Have you installed any of the AVG products before installing AVG Ultimate on your computer? Please feel free to contact us for any further assistance. Thank you.