Just had a bailiff letter announcing a warrant of execution for a debt of someone we've never heard of. It's not us, and it isn't our landlord. Tried to call the number but can't get through so sent an email to the address on website explaining that this person is not resident here. What do we do? Will scary blokes come round and try to force their way in? What if we aren't in? And what happens if somehow they get in and take our stuff?