Viktualienmarkt Beergarden

Found a place to sit down and looked at the menu for around 20 minutes. No one came to take our order even though we saw the waitress pass by a couple of times. Thought it was self service so went to pick up a couple of beers from the counter. As soon as we came back to our table, the waitress literally pounced on us and said... you have to leave this area as it is not for self service. It had started raining and the area a few feet away for the "self service" was getting pretty wet. Joanna (her name) continued to shout at us to leave and had no explanation as to why she never came to take our order when we were sitting in the "served by waiter" area. Went to complain to a "manager" and he told us that the VAT rate was different for the 2 areas i.e. "Self service" and "Served by waiter" and that is why we could not consume our beer in the latter area. That is also incorrect as the rate on beverages is the same at 19% regardless of where you consume.. Unnecessarily rude and obnoxious behavior to customers!!