The screen should now read Validating Transfer Authorization Code. This tells you that WA is in the process of verifying that you have entered the correct authorization code.

Take a break, you should be proud of yourself you got this far. Give WA a few moments or more to verify the code.

After several minutes (give or take), you should now see the following on your screen. It will now read "Check Email for Verification Link"

So, go the email in which your domain was registered with the prior company. In this case, it will be NameCheap. This may be different than the email you registered with WA.

You will get an email from Wealthy Affiliate that has in the subject line "Domain Transfer Request for <YOURDOMAINNAME.COM>

Open it up and it will be something like this: