Contacting Support

Can anyone tell me how to contact support as I'm told the Update for the new version in PT11 is available but I don't have an activation code which was supposed to be emailed to me which I haven't received. I can't find anywhere that let's you contact Avis support without costing me money. Any ideas? I am currently on PT 11.0.1 and would like to go to the latest version 11.1.3.