Walk ins for you bro wolf haven't worked.... so why not make a booking then show up..... 1 of 2 things will happen:
1.) if you get rejected then all your suspicions of racsism will be confirmed
4th times the charm.
How do you confirm that it's racism by doing that ? It's been explained many times that it's his bulky physical appearance that frightened the girl not his race !
My suggestion is : stop trying, go somewhere else !