kmart shopping

kmart had signs saying double coupons up to $2.00 which would made them $4.00. that's not quiet true. the sign also said only 25 coupons per person per day. My husband did this first round it should have been $11.80 instead it was $22.76. They don't always double coupons. Some of them rang up $1.50 instead of the $2.00. Even some of the $1.50 rang up at $1.29 instead of $1.50. in this order there was 27 items totaling $77.42 and I only paid $22.76, so i guess i can't complain.