Can you "unlink" a PTR acct from your bnet account?Follow

I am trying to figure out if I can either delete the PTR off of my Bnet account page or at least unlink it. My beta account is no longer showing up.

I am still having problems with the PTR not wanting to show me realms when using my main WoW account name, but when I use my trial account's name on the same PTR client I have downloaded for my main account name... I can see the realms and play a premade character I made.

For some reason...

Using main acct name (one active account, two named unactive accounts, and one "WoW1" (non-PTR/beta) account) I can't log into the PTR...

Using a trial acct name (different email) I can login fine using the SAME EXACT PTR client that won't let me on with my main account...