What are the after-sales service centers of Tianjin OPPO?

Heping District Customer Service Center in Tianjin: 2nd Floor, OPPO Experience Store, Nanjing Road State-run Telegraph Building, Heping District, Tianjin (Anshan Road Station exit C is just around the corner). Tanggu District Customer Service Center in Tianjin: Room A6, Floor 0/5, Fan Hua International Building, No.931Yingkou Road, Tanggu District (intersection of Center Road and Yingkou Road, diagonally opposite Tanggu Grand Theatre). Dagang District Customer Service Center in Tianjin: Behind Yingbin Supermarket, No.369 Pedestrian Street, Dagang District, Tianjin.