Xtenso gone wrong!!!

After thinking over it for more than a year, I decided to get my hair straightened permanently. I underwent an Xtenso session this weekend, n the results luked pretty good.. I had hair tht reached down to my shoulder..

But there was a slight wave in one of the shorter locks tht wudnt lie flat, so I went back to the salon after the first wash... to cut a long story short, I somehow got talked into getting a haircut.

And now.. I have some kind of layers in my hair, n plenty of shorter locks.. n they have all curled up!! Its only the hair tht reaches my shoulder thts kinda straight. It doesnt look like I ever got Xtenso done..

Isnt Xtenso supposed to make ur hair really straight, a level above plain relaxing? How can my hair start curling 4 days after the treatment? I m upset cuz I spent a lot of money on this.. What can I do next?