If it wasn't sent via certified mail, it won't hold up in court, because they have no evidence they sent it to you. They know they f#%$ed up which is why they tried to cover it via email to scare you. At the same time as other people have told you, you have to take pictures before and after to cya. Anyway do not blow off court, you still have an opportunity to get something returned or at least owe nothing.
Due diligence breh, its important, live and learn.