A week before my check-in, the host, Krzysztof, emailed me with check-in instructions, including the 4-digit code (1315) to open the lock box (which was attached to the door knob) that contained the keys to the unit. Upon arriving at the unit at 11:30pm, after traveling over 10 hours with two young kids age 3 and 6 in tow, I was not able to open the lock box with the 4-digit code provided. My wife and I both tried for about 45 minutes to open the lock box but was unable to. During this 45 minutes, we also called Krzysztof and left MULTIPLE messages but was unable to reach him. At that point, we contacted the Waikiki Banyan Hotel management but were told they were not able to help because this was a privately owned unit and not a hotel managed unit. Out of desperation, at 12:30 am we booked a room with Waikiki Banyan Hotel so we could wash up and get some rest. My kids and wife were did not get to sleep until after 2 am that night. At 830 am, I got up and started calling Krzysztof again. I was not able to get a hold of anyone on the phone for the next 90 minutes. During this time, I also emailed the Krzysztof, hoping that one of my communication channels will get through. At 9am, my wife called Airbnb's customer service line. After being on hold for 30 minutes and being transferred to multiple customer service agents, she was able to get one agent to either call or email Krzysztof. At around 10 am, Krzysztof's colleague, Patryk called me and explained that Krzysztof is out on vacation and he was filling in for Krzysztof and checking his in box for messages and came across our issue. He then told me that the 4-digit code, 1315, Krzysztof provided was incorrect and that 1315 was the access code for two bookings prior. Patryk told us the correct lock box access code is 6606. My wife immediately went up to the unit and was able to enter the unit. This entire process of checking in coupled with being unable to reach our host was a complete unnecessary nightmare. Patryk offered to refund us for the first night that we didn't use. His email message was this: "Aloha, I apologize again for the inconvenience we caused your family last night and we will be crediting you for the day. Krzysztof is currently out of town, so please call me at (PHONE NUMBER HIDDEN) or message us through Airbnb for any future assistance. Mahalo Patryk". Patryk's offer to refund us for the night we couldn't use was the least he should have done. I just feel like there could have been more that he could have and should have done because if you rent this unit through Krzysztof, he has set the cancellation policy on the strictest option. That leaves me, the customer, without any options to cancel any part...