Update.
So on Day 5 of being suspended I finally was given the opportunity to provide "my side of the story". At this point I was still unaware of what exactly the complaint was.
I basically rehashed the entire drama that ensued with the last guest. Starting with her complaining about street noise even though it is disclosed in my listing. She complained for 2 days via whatsapp (never on airbnb) even though all my responses were on airbnb's platform. Then when I realized how annoying she was going to be, I told her to just cancel her 11-day reservation and I would refund half (her policy was Firm) or change her reserviation to 5-nights. She was adamant that she couldnt bear the noise and the 50% was not acceptable. Then to get me to change my mind, she informed me that she was an instagram influencer (with 200 followers) and that she couldnt work or film from my unit with the noise. First, my unit is not listed as anything remote work friendly, on purpose. Second, I did not provide authorized for my unit to be filmed or used for commercial purposes. I didnt get a reply after reminding her of that (on the airbnb platform). The next day, I told her that I was on my way to the condo (on airbnb). When I got there, I rang 3 times, no answer. Then I saw she was online so I whatsapp'd her and stated that I was at the condo now. She jumped offline. I confirmed with the guard that they (2 people) were in the condo. I knocked on the door again, no answer. I unlocked the door and called her name from the hallway.
I guess at this point the fact that I could unlock the door is what prompted a safety complaint. I told her I sent messages and she hadn't responded so I want to make sure the condo was okay and I need her decision on what she wanted to do. She was so concerned with her safety that she send message that night that she need another day to decide. I said no, the 50% was good until midnight. After that, she reduced her reservation to the 5-nights. She was still so concerned about her safety that she stayed 2 more nights.
I told airbnb, perhaps next time I should just bring the police to remove the guests since there is no way to handle these situations with an adult conversation and no way for hosts to cancel reservations when guests refuse to respond/acknowledge, without being penalized.
My account is now active. So much negative energy was wasted on this.