Bad Customer Service

I attend this branch at least3 times a week and never had any bad experience's hence me returning. Yesterday afternoon i took my family. After placing my order which i specifically asked the cashier if the have the Mexican burger responded yes, i ordered 2 meals as well as the 2 kids meals. The kids meals were fine however i was given to Mc Chicken burgers. When i took the burgers back and i mentioned its not what i asked for Amanda Drive litteraly raised her voice and not allowing me to speak, even after i told her that there is a poster in the window which has the mexican burger on it of which i also took a pic. Instead of apologising for the mistake she goes on the till gives me my money and having me to re-swipe my car for the 2nd time. Also i ordered 2 Milkshakes 1 being Strawberry and 1 Chocolate. I explained to the cashier its wrong even though my slip stated 1 of each she gave me both Strawberry. I told her i would take it however its incorrect, the cashier then apologized and i said its fine. The cashier was fine and sympathetic towards the situation however Amanda was rude even after another customer came to me and said that she never saw so many mistakes on some1 order.