Experienced something similar myself from the other side
In-Law organised an Air-BnB accommodation for new years eve.. Taxi driver who took us from the ferry said she knew the place and dropped us off. Place was VERY nice and in-law was gloating about how well she had done - before heading off to secure provisions for the evening, leaving me to hold the fort while aged mother-in-law rests.
Shortly thereafter, van load of youths arrive escorted by real estate agent, and it turns out the taxi driver DIDNT know the place, and i had to surrender the fort - and re-locate the mother-in-law. Also dead phone batteries so couldn't inform the away team,
All in all it made the event quite memorable, and lessons learnt included always having a copy of documents/itinerary available, avoid Air-BnB, and avoid going on holidays with the in-laws.