All ok. Thank you!
This seller is a miracle of man. The Chinese customs returned the shipment to the seller after a few days. I sent him a message asking what to do about it. He answered me after less than 15 minutes and suggested the fastest solution. I agreed and after 10 minutes, he sent me a new tracking number. After 25 days (good timing for Serbia) the goods are in my hands, safely packed in a cardboard box. I tested it and it works perfectly! 5 stars for this seller is not enough. If possible I would give him 5 million stars.