Agree with my esteemed compatriots above (cough cough). Are you fucking kidding me, waiting that long? And worse yet, she won't give out a number or any other way to get in touch with her to find her schedule? Fuck, she can get a google number on her smart phone for free and just use that as her customer number, and she won't even do that?! Honestly, I'd feel absolutely pathetic waiting, and that's even before I think about the fact that likely everyone else knows who I'm compliantly waiting for like a good puppy.
On the other hand, maybe this presents some opportunity. My ATF from 3 ATFs ago -- my great-grand ATF? -- used to always show up to work 1-2 hours late and have to pay fines for it, get assigned bad shifts because the manager was irritated with her all the time, etc. She was definitely a late sleeper, and lived over an hour from the club, making it worse. So, we came to an arrangement where, when she worked 2 days in a row, sometimes I'd pick her up after her shift on the 1st day, get a hotel room nearby, party all night, sex, then she'd roll out of bed in the morning and 5 minute walk to work. She loved this so much she usually didn't charge me -- it cost me the price of the hotel room, dinner, and drinks, and most of the time, that was it. Your girl might appreciate such an arrangement if she's a dayshift girl who is just having trouble waking up on time in the morning