You had a concussion eight years ago and eight years later are told to get a cog screen?

You had a concussion eight years ago and were told at the time to get a cog screen?

You spent 8,500 dollars eight years ago and are just getting upset about it now?

You got a concussion eight years ago, had the cog screen, spent 8,500 dollars, and got, or did not get your medical at the time?

You've been trying to get a medical for eight years, following a concussion?

Impossible to know what you're suggesting, so little information is provided. We can be sure you're not happy about it.

It certainly sounds like you have not employed a service that walks you through the process, but instead tried to go it on your own. Then again, you're so defensive and vague, who knows? You've been grounded for eight years, and are introducing it now? Why now? What's really going on here?