I was told few days before my trip that I can only check in at 15:00. I was ok then I told the host that I am flexible till 20:00. A day before my trip I told him I will check in at 15:00. He didn't reply he sent earlier that day check in information which didn't work. I tried many times but it didn't work. I called the host and their WhatsApp business for 5 hours. But no answer, I was in the cold weather of Paris waiting with my wife but again no answer on my DMs or WhatsApp. I had to book another hotel after my trip to Paris was completely screwed. I will complain to AirBNB Managment for ruining my holiday.