I'm so fustrated with this McDonalds. It seems lik...

I'm so fustrated with this McDonalds. It seems like the people who work there have never been trained to do their job. There's hair in the food all the time, and the cashiers are so bad at math. My sister ordered 1 Orange juice, 5 one dollar McMuffins and 1 parfait, the cashier charged her 15.99. Really? When she asked her why was it so much the cashier just repeated the order and said "thats why". At the most it would of only been 9 bucks and today a few hours ago the night manager swiped my sisters card and she returns it and says "sorry your card was declined I swiped it twice but it didn't work" so I pull out my phone and check my sister's account and the cashier had charged her twice. When we told her she charched her twice and showed her my phone and the account summary she said "oh its an over draft fee" Are you serious? Can you not read?