Roben, it is possible that the shop owner did not know their bolt was different than what you had bought previously.. when they order, they get one option,
They dont get to decide, "Well I want that cheaper version of that"
That usually happens when the big discounters have theirs manufactured.. they can choose a different base fabric for the printing...
but the shop owner just orders her fabric and assumes she is getting the same as everyone else...
To be safe, it would be best to take your own fabrics in to match, no matter where you go to buy it...then you can make the decision at the point of sale whether you can live with the differences or not...