Dollar General complaint: Refund

I was buying food and pop, after I paid I noticed that the Pepsi didn’t ring up at the sale price, it was around $3 more then it should of been and the Dr. Pepper what was on sale 4 for $5, I was charged $2.95 for each one. for a total of around $10 more then I should of paid. I point this out that I was overcharged. He tried to give me $2 and some change I was like no I was overcharged by $10 not $2. He start to get defensive for some reason. And then got an attitude with me because a line was forming behind me. He then walks into the back comes back out with a recipe and says he refund the whole order and started to re-ringing it. The price was still overcharging me. I pointed this out, before he got done re-ringing it. he stopped hand me the recipe what said I was refunded and said the money will be on my card and to leave his store pretty much throwing me out. As of now the $57.15 has still not be refunded to me.