I requested a head (being made) and I want to send tc, but when I clicked the transfer tc link, this happened:
Click for information regarding account trading
To activate trading on your account, do the following:

• Verify email (you can edit email here).

Or get a ToriPrime subscription.

How do I send tc to the user?

Do what it says and verify your email address.
If that's done successfully, you should be able to send TC with ease.