I also think it should be handled on the spot. There are many online scammers, so it is safer to find a regular firm in Jiamusi.
Jiamusi has a trademark patent agency.
Address: Hongda Office Building (the third floor of the former fire brigade), No.659 Chang 'an Road, Jiamusi City.
Tel: 0454-8787955
8789955
Jiamusi Zhuo Wei intellectual property agency
Jiamusi locals can go there to have a look.