Best Buy Grocery

I went to fill up gas at this location on Dec.19. I used my credit card to pay $25 inside the store. I was able to fill up gas only for $20. The gentleman inside told me that he would credit $5 to my credit card company. Well, I checked my credit card statement online on the 26th- no such transaction had occurred. So I called the store on the 26th and told a gentleman what had happened. He told me to come to his store and get the $5. When I went inside the store to claim my money the gentleman looked at me and said that I would have to come tomorrow because the manager was not around. I asked him why did he then tell me to come to his store. He would not make eye contact but instead said that he did not know. Then he tells me that I had spoken to the manager who had left his store 10 minutes ago. I told him that nothing he said made sense, He needs to call the manager. Meanwhile about 9 customers had gathered behind me. He told me to wait because he wanted to take care of them. I was annoyed because I was also his customer with an issue. After making me wait for five minutes, he just puts $5 on the counter and tells me to take it. I did not see him call the manager or text him. I really think he gave me a story to avoid paying the money.Desired Settlement I think the gentleman who said that he credited $5 to my credit card on Dec. 19 never did it to begin with.Then the other gentleman on the 26th of December really had no intention of paying me until I stood my ground and made him aware that I was going to collect the money owed to me. I think the men in this company need to learn to respect their customers.