Dear Sirs,
no address is written on the copy of your ticket in our possession, nor a map, but only our telephone number - for any urgent communications - and website.
Unfortunately, it is impossible to attach this copy of the ticket to this reply, but we have proceeded to send it to you privately through Viator.
The address of the concert location is on our web pages, both Viator and Tripadvisor and obviously on our site.
On the door of our venue we put a big bill with a strong spotlight that allows it to be seen from the street.
We are very sorry for the inconvenient, but it's out of our hands because unfortunately we cannot decide the data included on the Viator tickets.
Anyway we are glad you enjoyed the concert and the toast at the end.
If you are still in Rome we would like to invite you to come again tonight as our guests hoping that this might help to change the review since we really did our best.
Best regards.
The Staff of RomeOperaConcerts