Early Licence Expiry

I have had Avast for 2 months and I am getting a message to say my licence will run out in 4 days. What do I do

Welcome David.

Request a license:
http://www.avast.com/eng/home-registration.php

You will receive an email with the license.

I recived a licence number when i paid for the 1 yr subscription in feb - and used the link to download

What does the about box say, namely the “Registration key” section?

Are you using the trial version for 2 months? It’ll expire the trial period.
Register for free and add the license key into avast.

David has already paid for the Pro license, see below.

So I suspect that he may not have entered the license key into the about avast, License Key area, as Igor is I believe surmising.

@ David
Have you received your email with your License key ?
If so have you entered the key into your copy of avast ?