K.F.
Ugh, I went through the EXACT same thing with my daughter. She eventually got it. I did the pull-up thing too, and got to a point where I told her I couldn't buy any more once "these" were gone. She would wear panties, but go to her room and put on a pull-up when she needed to poop - I mean, really!? Ha ha, she even trained herself to stay dry at night so as not to use up any unnecessary pullups for anything but pooping. One thing that I think helped was I let her use the pullups, but I made her go in the bathroom to poop. . . . she did eventually get it and I never had to buy more pullups.