Walgreen's

I was trying to lessen my OOP by splitting the transactions, but I guess I didn't do it quit right; on one of my transactions, I was not able to use any register rewards- I guess because all my items were "accounted" for by a coupon, eventhough I had more items than coupons. But since one of the was expiring, the cashier let me get another set of the Campbell's soup (limit was 4) to use up the expiring RR:

Transaction 1
2 Nyquil $5 ea used (2) $1 q's & got a $5 RR
4 Campbell's Cream of Chicken 2/$1.59 w WAG q used 0.25 q
used $7 RR
OOP: $4.73
Saved $12.43 & earned $5 RR

Transaction 2
2 Trident Gum 2/$2 used (2) $0.75 q's
4 Quaker Granola bars $2.50 ea used $1/2 & $0.75/2
(also earned $5 RR)
Was NOT able to use RR's on this transaction:
OOP: $9.11
Saved: $3.25 & earned $5

Transaction 3
4 Campbells Cream of Chicken Soup 2/$1.59 w WAG q
used $2.50 RR that was expiring
OOP: $0.78
Saved: $5.68