What is it that the futures platform withdraws 50,000 yuan and says that it will arrive in 24 hours?

Because you need customer service to handle the account.

24-hour arrival is only a time limit, but it is not necessarily that late. Because customer service is needed to handle the account, the time generally given is the latest time.

24-hour arrival means that the funds arrive at the receiving bank account within 24 hours from the date when the futures platform applies for transfer.