I accidentally bought pro antivirus instead of Internet Security

Avast Free Antivirus / Premium Security
1

Hello,
I accidentally bought pro antivirus instead of Internet Security can I please have a refund for it and let me buy Internet security instead?

2

For things like that you need to contact avast (ticket) > https://support.avast.com

3

http://support.avast.com/support/tickets/new