Shell Garage Brooklyn

I had the most unpleasant experience with shell garage in Brooklyn today i waited for over 30min to be assisted which i first understood that they were short staffed then a car that came after us got assisted and when we asked the attendant told us to wait our turn we not pouring the same amount of petrol as the discovery was. Very dissapointed. Its dissapointing that a place as busy as Brooklyn can only have 2 attendants