Daughter in deep poo with me!

I am extremely pissed off at my daughter. The child is coming back from camp tomorrow and on my day off Thursday I plan on going down to see her. I have talked to her mom and the 3 of us are going to have a sit down..with me doing the talking.
The child has had a major attitude towards me all year long (since my "return"). I can understand it..to a point. But her recent behavior has pushed me over the line. I spent $750.00 I DO NOT HAVE so she could go to camp. I negotiated like crazy to get them down to this amount. I need to give $200.00 towards her plane ticket to Chicago in August to see her friend. I buy her clothes, books , etc., like a dad should, of course. What do I get in return? MAYBE an occasional visit from her. And while away at camp she wrote her mom 4 letters, wrote me zero. Not even a quick "happy fathers day" on fathers day. So this nastiness plus her crappy school performance last year has led to a discussion with her mom and what I hope will be a united front.
Meeting#1 is this week. We will discuss her upcoming orthopedists appointment, she has no idea that the test results showed something. Then I plan on "opening a can of whup ass" on the child. Simply and strongly telling her that I cannot believe a child of mine could be so damn selfish, insensitive and greedy and that her attitude best come around 180* or I WILL make her life a living hell. I will NOT have a 15 yr old snotty bitch for a daughter. She needs to get over what happened to me and move forward. Its done. Over. She needs to be grateful for what she has and realize that all could be lost in the blink of an eye. She needs to learn the value of $ and that it is earned..not some sort of birthright to the mighty Platt/Silver fortune (LOL).
I have asked Jodi to not say anything and to support me and that if she disagrees with me to do it in private, not in front of of Lauren. See thats what Laurrens game has been, cry to mom, mom calls me and tees off. UhUh..no more. Game over.
Phase 2 will be in August before school starts. New rules in place. NO CELLPHONES DURING THE SCHOOLDAY OR AT NIGHT except for a couple of hours at the end of the evening. Turning texting OFF. If after the first quarter no grade is lower than a B, than some of this will be relaxed. Any grades lower than a B, where I feel she hasnt made a strong effort and NO DRIVERS LICENSE.
Meanwhile my son is as sweet as can be, grateful, polite, etc.. What did he get this summer? NADA. He pulled a B average last year. No camp. No trip. This is bullshit. I`m making changes.BIG TIME CHANGES!
The girl best watch her ass with me.