If someone want proofs I can send P.M photos etc..
Sorry to hear this.
I just don't understand why he bothered to actually send a letter possibly revealing the post office from where he sent the letter.
If it has cameras police might be able to recognize his face...
If it has outside cameras they might see his car...
If he paid with credit/debit card (long shot but it would be ironic )...
Report it to the police.
How did you pay?
I paid with Skrill. I explain you why he actualy send something. He send the letter and before it arrived he told me that he couldnt sell his other card and he wanted to give me the special offer and give me the second card just for 150EUR more. I did not accept and started to feel very fishy after he asked me that. He also intentionally did not write my street number. So the letter did not arrived. I had to go to local Post Office.