Hello @Debbie1317, I am sharing an article related to security deposits that states:
Hosts aren’t allowed to charge guests a security deposit through our Resolution Centre or outside the Airbnb platform. Instead, we inform guests at the time of booking that their payment method may be charged if they cause damage during a stay.
There is one exception: Hosts who manage their listings with API-connected software can set a security deposit using our offline fees feature. If a Host has done this, the deposit requirements will be clearly communicated during the booking process.
I highly recommend contacting the Support team for their advice on the next steps.
I hope this helps 🙏