-$3.08 @ Walgreen's ~ returned 3 Digorno pizzas, bought 4

Walgreen's

Digiorno Supreme pizza $3.29
Digiorno Supreme pizza $2.79
Digiorno Supreme pizza $3.00
Digiorno Supreme pizza $3.00
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$12.00
return Digiorno Pepperoni pizza -$5.00
return Digiorno Pepperoni pizza -$5.00
return Digiorno Pepperoni pizza -$5.00
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-$3.00

I bought 3 Digiorno pizzas in this transaction for $5 each as part of the deal to purchase $20 food & get back $5. When I picked them up, another customer commented that the pizzas were so good and a great deal at $3.29. I asked the clerk to check the price on mine, and they were $5 each. I paid for them, and the Oscar Meyer ham and received back $5 register rewards for the purchase. Then I bought these Listerene Pocket Packs, and the cashier saw my pizzas in my buggy. "Those pizzas are a great deal, she said, just $3.29 each." I asked her if she meant that was the price after subtracting the register reward, and she said, no, they were ringing up for $3.29 each. She suggested I find out which ones were $3.29, and then exchange the ones I had purchased. So I went and got a supreme pizza, and asked the cashier to scan it. $3.29. I went back & picked up three more Supreme pizzas, and exchanged my 3 $5 pizzas for 4 supreme pizzas. The first one rang in at $3.29, then $2.71, then $3, then $3. Perhaps they are reduced to 2 for $6? So I left with four pizzas instead of three, and $3 change.