To participate in the competition, one must first have a personal account, and to have a personal account, one must have an 'Eye' for transactions. The Eye is akin to a free vaccine given to newborns, available to everyone.
If it's lost before the age of eighteen, one can apply for a loss report, but generally, it doesn't get lost since losing it is like having your eyeballs dug out—how often could that happen?
It's also possible to report it lost after turning eighteen, but then one would need to work for a period of time to acquire a basic version of the 'Eye,' which is like an old-fashioned, cheap but functional mobile phone.
This work period is at least a month, after which one not only gets a basic version of the Eye but also some extra wages.
Zheng Yichen would never do such a thing; he only has ten days.
