I went to the gas station on saturday 4/11/09 around 7:30pm to purchase a $5 calling card and add minutes to a cellphone for $10 which would equal to $15. I handed the cashier(a black lady with braids, I didn't get her name)$20 then I couldn't add the minutes it wasn't going through, so I told her ok then just give me the $5 calling card, she handed me $5 back(the wrong change)! So I said "I gave you a$20 you're supposed to give me $15 back, she started arguing with me and said no you gave me$10, then I replied I'm... read full review »