Unable to withdraw coins

1) When withdrawing coins, it said that there was a lack of transaction volume of 3,000. After two days, I aksed customer service and said that there was a lack of transaction volume of 3,500. 2) After making a transaction volume of 3,000, go to withdraw, and after 24 hours, you can no longer log in to the platform. 3) It is said that the platform is upgrading, ask customer service, why can't I log in? After submitting the ID number, the customer service closes the dialog window.