"Good morning, how are you what can I get for you today? Said the gas attendant
"$15 regular please" said the customer
Attendant starts the gas started washing the windows he asks"would you like your oil checked mam?"
Customer asks "sure but how much is it?" Gas attendant tells her it's free to check your oil mam. So she says "sure thank you" attendant checks heroic and it's extreemly low, there is no oil on the stick.  He tells her "you need oil there is nothing on the dip stick" she says "oh no can u put some oil in" he replies "no problem mam" he puts 2 quarts of oil in the car, puts the cap back on, and closes the hood.  He tells her the total is $26.00.  She says she only asked for $15.00 of gas and she only has $15.00.  What do we do????