What do you think about this?

So I went to a strip club out of curiosity I only had 30$ on me. I went in cover was free so I bought a pop and tipped it was 6.50 then I fine young lady came over to talk to me she offered me a 20$ dance so I said ok because I had the 23.50 left over I went up to the vip section and it cost 10 for a wrist band when I went back I told her I'm sorry but I don't have 20 after I bought the band so she did the lap dance for 13 and gave me a handy....no lie! What do you think about this? Was she just trying to get me to come back and spend more or what? Should I go back and give her more money since I ripped her off for 7 bucks. I don't want to be a guy who frequents those places because I know those girls are all about making money but I thought that was nice what do you think? Seriously its been bothering me because I heard that stuff doesn't happen like that