@Kinam0, AirBnB is not like hotels (that charge you a deposit, then the total at the end of the stay).
AirBnB charges the guest the entire amount on the day they make the booking, regardless of when the stay is.
For example, if a person makes a booking for a week staring March 1, 2018, they will be charged the full amount TODAY, and AirBnB will hold the money. On March 2, 2018 after the guest checks in, the Hosts share is sent to the Host.
AirBnB will hold onto the money for the entire time between the booking and the stay.
You should probably be alerting both AirBnB and the bank your card is from. Tell them everything you know and maybe they can figure out who did this. AirBnB should at least know whose profile made the booking. Whether that can lead them to an actual person is another issue.