Should you be charged for another full cup of tea if you ask for an extra tea bag? You like strong tea and don't use the milk or sugar.

Should you be charged for another full cup of tea if you ask for an extra teabag because you like strong tea? You don't use milk or sugar.

Should you be charged for a full cup of tea if you ask for an extra teabag because you like strong tea. You do not use sugar or milk?