Oh come on now, women are just basically wusses, there's nothing malicious about their inability to say no. Consider this, you talk to a woman in a bar. Within 10 seconds she knows that she isn't interested in you. Nine times out of 10, does she tell you? NO, she's a wuss.
You not knowing this offer her a drink (if you're an AFC), she agrees not because she wants a free drink (it's not worth the trouble because she knows that if she accepts it'll be harder to get rid of you), she takes it anyway because she's a wuss.
You ask her to dance with you and she agrees. There's still no attraction on her part but she goes along with it because... SHE'S a WUSS!
Finally, you ask for her number and she actually gives it to you! You get home and call her in three day just to find out it's the number to a car wash. You get pissed off and can't understand why she did that. You think that she's just malicious and did all of that just to get a free drink. You're wrong, she did it because SHE'S A WUSS AND CAN NOT SAY NO!!!!
And that is why they need services like this. Just accept it as fact and move on.