I did send him a email explaining the situation and he is willing to take it back.
But sending it back is not a n option:
I already paid $50,- shipping and insurance and $80,- customs, sending it back will cost a additional $50,- bringing the total loss of $180,- for a product I paid $270,- for
So when I return it I will only get $270 – $180 = $90,- back in the end.