Extra water inlet connection inside flat's dry balconey

there is already Inlet tap connection was given in my dry balcony. i have added extra tap connection in dry balcony by T connection.

society is charging me extra fine for extra usage of water, is this legal.? as i am doing extra tap connection inside the flat. Socitey should not interfere what i am doing inside flat.

This rule is added in our society rule book by our committee.

Please guide