And I want to win the lottery too (just joking) but getting a stripper/provider's phone numbers is really rather easy. Be nice and actually ask them for it. Trust me, you might regret that some of them, have your phone #. I am sure almost every gal there has a work cell phone.
I used to mess around with a Playhouse dancer, she called her 2nd phone, "her sucker phone". When she needed something she would call one of her suckers, go-go bar patron's, on that phone. She told me I was on her good phone. She told me after about 2 months, she was breaking up with me. I laughed and said I didn't know we were officially a thing and dating.
She was a crazy one, sucked a great cock but wasn't worth all the craziness. No, I don't know where she ended up, it was like 10 years ago.
That said, this Erica, who I am not familiar with, is very unlikely to answer a random guy's call and allow you to ask in detail how to meet up with her for an encounter outside of the PH. Approach and talk to her directly about this at the PH. She might shut down the idea at first but stranger things have happened with persistence or an offer of some serious cabbage, has a way of wearing them down.
You know, she has 1.5 hours left in her shift on a Tuesday afternoon and the bar has 4 guys in it. You're offering double the money she has made so far that day for 45 easy minutes with you...It get's her thinking...