Trattoria Lo Spagnolo

We were here following a recommendation by locals. not greeted but seated outside, we were asked what we wanted to drink, brought water and spicy oil. 15 minutes of no further interaction later (BTW I am italian, it wasn 't a language barrier , we 're brought a plate of 15 arrosticini for the 4 of us. mind you, we had a vegan at the table who would have liked to order something else, of course. I proceed to ask inside for options, and it turns out the option is bread. no veggies of any kind, no potatoes, just cheese, cold cuts, and arrosticini. ok, NO PROBLEM, we treated it as an antipasto and decided we 'd have dinner somewhere else. once the plate was finished, I went inside to pay, only to realize we 'd been billed for a second serving of 15 arrosticini we didn 't ask for, and didn 't want, and weren 't going to eat. again, because I speak the language, we persuaded them to take the food back, and the money off the bill, which did take some arguing as we had not said we didn 't want any more.. first: who should I have told, as the waitresses were nowhere to be seen!?!? secondly, how should I have known to NOT order something at a restaurant!? arrosticini good but not outstanding (yes, I am from the region, I know my arrosticini.. service appalling. a resounding nope.