The last time I called, I had to leave a message too. They called me back the next day. They have 2 locations for appointments. Norwood Ave and Cassat Ave. Or you can try again.
Your best bet is to go up there early when they open. They have appointments but are hard to get. You're better off walking in. Its least busy first thing in the morning, the later you go, the longer you'll wait.
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