Originally Posted by wsbombers
Delta absolutely has to collect the tax. However, they could have decided to give you a .10 refund on your fare and apply the refund to the tax payment.
In reality, if I was the agent, I would have aproached it this way:
I know it's silly, but I am required to collect 10 cents from you. Since it will cost Delta maybe a couple dollars to put through a charge through on your card, can I ask that you just offer this amount at the counter at the airport? It will also give you a great story about the looks you got when you paid ten cents for a ticket!
Then I would just make a notation in the record that customer would pay remaining amount at the counter.