all stores are the same ~ I was high management, here's how it works:
Use a coupon (i.e. 40% off) on an item that is not on sale
Use your VIP card for 10% off everything else in that transaction.
The computer will not calculate the 10% on top of a 40% coupon, its considered a "double coupon" ~ BUT the 10% IS valid on top of items that are already on sale.
Exclusions:
Remnants, patterns, AccuGo products, Cricut products, sewing machines, Yudu items (i.e. price-controlled products from the manufacturers)