How do I activate the AVG

I have the free 30 day trial. It lasted less than 48 hours.I am trying to reach billing.i think this is the best place to make a note to file and correct the problem.

I bought the AVG Antivirus last night!! and today it tell me my free trial is over and i need to buy the thing again which i bought it yesterday or last night and so what should i do
Hello Jon. I see that you have purchased the AVG Protection which doesn't require license number. Please uninstall your currently installed version and then install fresh copy of your product from the link http://support.avg.com/SupportArticleView?urlname=Download-and-install-AVG-Protection

Thank you.
I have the free 30 day trial. It lasted less than 48 hours.I am trying to reach billing.i think this is the best place to make a note to file and correct the problem.