mcdonalds viking sucks

we were at McDonalds viking , my sons bday and we just wanted to get him something, the ladys with the manager had so much attitude with my wife, even the order was completely wrong, they had no beef so there was only chicken burgers available, when we told them the order is wrong they even had an attitude regarding that, we paying for our food you are not doing us a favor, have customer service experience , if it was not for the kids i would have walked out, please train those staff this is not on. they have no way of speaking. and my wife was nothing but polite with them.