Sam is not gone. Sometimes, ad doesn't have her name on it. My guess is that Club Yelena is trying to advertise some of the other names since Sam has a lot of regulars and may not need as much advertising. I wondered the same thing awhile ago when I didn't see her name in the ad. I called and found out she was still there.
I guess Samantha has left Club Yelena. I saw her in late August and she was mentioning something about setting up her own place. However, she said that wouldn't be ready for awhile. I got her number though. It is 650 - 2939. I think she is only going to see her regulars for now until she sets up new place.