Burger King, Bad Service

Really bad service. I ordered to go double whopper sandwich and large fries. I gave my card, they charged it. But there were something wrong the cashier said something i could not understand, i said my order one more time, then she spoke in Spanish with others, then she swiped my card second time. I took my card and burger , drove to home. I got home, checked the bill, but they charged more. Later i checked my account they charged me twice. This is horrible. If you go to burger king and your cashier don't speak that well, just don't order or order something easy. Or they will charge more.