@Lhamo0in cases like this you should follow few steps:
- contact your guest via ABB resolution center before your next guest arrives. Ask her to pay xx$ for new lock and keys and lost items. It is good to upload the picture of the bill.
- if she doesn't respond in 72 hours you can involve Airbnb
- after that there is not much you can do. It is up to the Airbnb representatives. They will contact your guest and decide.
- It is allways smart to have security deposit . If you don't have it then Airbnb can not charge her even if they want to. In that case Airbnb can only refund you from Host guarrantee.
Think about taking your guest's photo ID informations at arrival so you have their names. Make them sign a paper where it is stated how many keys they have received, that they have to return them on check out or will be charged xx$ for new locks and keys. Make them sign it. It helps.