I booked this room for a friend of mine and made it clear in a message to Mario and Alex that this was a booking for my friend who would be arriving that evening and sent them a contact number to contact my friend. Unfortunately, neither Mario nor Alex contacted my friend and he was not able to access the room as no one answered the door and no one responded to phone calls or messages through airbnb. I was very disappointed at this lack of response.
If you are not available to provide entry to your property then you should not allow people to book it and pay for it. I am still waiting for my refund and even then it is not the full amount that I paid due to airbnb charges. I believe this is unfair and I will be making enquiries through airbnb with regards to this.
I hope Alex and Mario learn from this experience and ensure that they provide a much more professional service in the future.