I use the centralized trading version of Guotai Junan Fuyi.
No lottery, no charge, little risk.
What is lost is the current interest during the freezing period of subscription funds.
When the personal stock account is available, the funds will bear interest.
Last year, I bought about100000, and the interest was frozen for several days.
It is equivalent to buying lottery tickets. During that time, IPO was intensively subscribed for half a year. Fortunately, I won a contract with Dongli Transmission.
I hope I can help you a little. Congratulations on getting rich.