Such a small venue with incredibly rude staff, if ...

Such a small venue with incredibly rude staff, if your thinking of going to an over 18 even here please think again as i am 20 years old and brought 2 forms of proof of age (drivers license and student card) i got turned away even with id, as did my friend who is 22 and brought her passport and again got a knock back, staff were incredibly rude and i was told to "not insult their intelligence", i have a tattoo which i also showed and a braclet that have both an 18 and 21 charm on it and they rufused to give me my money back and let me in