There is a very well organized Invite thread that you can try here: http://forum.xda-developers.com/show....php?t=2780328
That thread may not be accepting new names, and if it isn't (but it currently is ), can you please post your Invite request into this thread. This will keep the OnePlus One forums from filling up with millions of Invite requests that will just end up getting ignored. It will also help people with invites to find the people who need them.
Once you get your invite, please edit your request to "got one" or something similar to make it easier on everyone...
Oh...don't forget to share your extra invites too
Mod edit: Any selling of invites on XDA is strictly prohibited and will result in the post(s) being deleted and an infraction towards your account