G.E.M. August 19 Kai Tak concert tickets available at face value

I couldn't get tickets for G.E.M.'s concert in Shenzhen, so I thought I could go to Hong Kong since it's nearby. I was in a rush when buying the tickets and didn't check the date carefully—I ended up with Tuesday tickets, but I can't take time off work. I'm definitely not a scalper; I only follow artists I genuinely like. Two balcony tickets, 1,580 RMB each. I chose express delivery when purchasing, but I haven't received the tickets yet, so I don't know the exact seat numbers. I live in Futian, Shenzhen. I can meet at the border checkpoint, or I can go to Hong Kong on weekends for a face-to-face transaction at a location of your choice. Mainland China phone number and WeChat ID: 15814046718