Bank stole my car?

[Landau Stable]

Idk what the hell to do or where to go from here. I have had a Landau stored at a mates place for the last 2 years. Anyway, i have been told that he never recieved a letter, and was recently evicted by the bank. 2 days later he returned to the property (today) and noticed several vehicles missing. he is fighting it because he never recieved prior notice, and is trying to prove that he did in fact attempt to pay the bank. In the meantime, where the hell is my car and what have they done and how do i get it back? what do i do?