We didn't trust our private info with VNG property, and they charged us but did not let us check-in.
They did not allow us to check in. And they did not refund us either. After paying for the place they sent us a request to upload our passport and privacy-sensitive info, like our home address, in an online form. We were not comfortable with how they handled this info and requested them to refund, we also requested them to provide more details on their data privacy. They did not provide anything. We requested a refund multiple days before the reservation and they declined.