You have his address?
Sen him an envelope full of your own shit, on a weekly basis. It won't help you get your 200 sobvs or phone back (and will ultimately cost you more money) but there's nothing you can do about that. You may as well get some enjoyment out of the situation.
Gone but not forgotten:
325i M Sport (E92), Black Sapphire, Coral Red Dakota, 19" 225's, Seat Heating, 6FL and de-badge
Replaced by 6.2 litres of AMG powered C class.