Code not being accepted

I have purchased AVG Internet security unlimited, I have registered and can login to my avg. I have it installed on my tablet, but will only show free version with adds, when I try and redeem the code, the same one I registered and sign with, says invalid code. please help.

Hello, William.
Thank you for choosing AVG. Is it on an android tablet that you are trying to activate AVG Anti Virus Pro? If yes, please follow the steps provided below to complete the activation.

1. Open the installed free AVG app.
2. Tap on drawer (3 lines) on top-left of the app.
3. Select AVG Account.
4. Enter your My Account email address and password.
The paid app should get installed automatically.

Hello, William.
Thank you for choosing AVG. Is it on an android tablet that you are trying to activate AVG Anti Virus Pro? If yes, please follow the steps provided below to complete the activation.

1. Open the installed free AVG app.
2. Tap on drawer (3 lines) on top-left of the app.
3. Select AVG Account.
4. Enter your My Account email address and password.
The paid app should get installed automatically.