This is exactly why I will not quilt for money.
I have lots of fabrics and scraps I want to use up, so I make donation quilts. I have given away a whole bunch of quilts. I pick the pattern the colors and FMQ. I figure no one can gripe about a free quilt. At least not to my face.
When the Lady finds out how much they will charge her for quilting, she will be shocked. That was very unprofessional of she/they to do that.