Horrible service

NEVER use Burger King Greenstone here's why. Get to Burger King Greenstone drive through we then get asked what we would like to order. We ask for 2 x soft serve with a flake. We then wait 15 minutes to get to the 1st window (only 1 car ahead of us). The man then asks us for the second time what we actually want (why did we ask for 2 x soft serve ice-creams the 1st time?) So we order AGAIN. we then wait another 15 to 20 minutes before getting to the collection window. We then sat and watched a very unskilled employee spoil 2 x soft serve ice creams and throw them away and then she tries to give us her 3rd spoil but we refused because when getting our ice creams yesterday (we were at the same place yesterday and 2 days before that) they were perfect. We asked to speak to a manager and no one at this store speaks English (A BUSINESS LANGUAGE). We explain what the problem is and all the manager says is that on the previous days the people weren't following policy. WHAT DOES THAT MEAN. We had no complaints before today but all of a sudden no one speaks English, we wait 30 minutes and the service was pathetic. Rather waste petrol and go somewhere else.