Shenzhen is still awesome. Recently, there was a prize draw for invoices. As long as you have invoices over 100 yuan issued in the past, you can participate in the lottery with a very high winning rate, up to 800 yuan.
You can draw 5 times a day. Today, I won a total of 100 yuan in 5 draws.

During the pandemic, I spent a lot buying groceries from Hema and Pupu, accumulating a bunch of invoices that can be combined to reach 100 yuan.

Today, I got my pig trotter rice 😋

For participation details, see image 4, limited to consumption in Shenzhen.