Quoted from snakesnsparklers:
Good, she needs to get her shit straight.
If part of what you do to pay your bills included a thriving on-line business, where you had to depend on a service to complete your transaction, you would come to appreciate how people can be helpful when things don't go the way they should. So you can either treat them like servants (get your shit straight) or you can treat them respectfully. Amazing how when you treat people respectfully they almost fall over themselves trying to help you out.
Or maybe something you might be able to understand better: Don't piss off the person that cooks your food.