+100. Are you sure it was charged, not just authorized?
I don't understand what you mean, it is now a pending transaction.
It's called "dispute" google it.
I was not born yesterday. First of all what kind of chutzpah does this Gas station have putting me through this hassle, second of all, I did not setup online access for all my credit cards - I should do it for a dollar??? (and no, there's no way I will call them!)