Big Lots

I went to purchase a bag of dog food. I grabbed a bag that was sitting over a price tag of $9.00. When I got to the register it rang up for $10 and change. I mentioned it to the cashier who then told the manager Barbara. She first came back and said it was wrong. So I walked back there with her and pointed it out. She said thats not the right tag. I said well the bags are sitting it over it. She pointed to a tag at the far corner and said thats the right tag. When I asked her to honor it she said "are you kidding?" So i left and when I returned a couple days later to buy new bag, I noticed the tag she said was the price was in fact not the price because it said $20. The bag rings up for 10 something. So I pointed it out and asked her to honor the $9 since the bags were still sitting over and she refused. I took pictures. This woman is always short and unwelcoming. She refused to make this problem right