Closing an account: Checking or savings account

On a Saturday, I initiated an ACH transfer from my SoFi checking account to an external bank account for approximately $1500.00. After initiating the transfer, my account balance immediately dropped to $0.00. Shortly after, my transaction history, statements, and account activity disappeared from the SoFi application. My account also appears to be in a closure or restricted state, and I can no longer view normal account details. I contacted SoFi multiple times and received conflicting information from different representatives regarding the status of my funds and the ACH transfer. One representative indicated the transfer was pending in their system, while another suggested funds may be on hold. I was advised to wait until Monday, but I was not given a clear confirmation of whether the transfer is pending, processed, canceled, or returned. As of now, I can not verify my account balance breakdown, can not confirm the status of my ACH transfer, and can not access my normal transaction history. I am requesting a clear explanation of where my funds are and confirmation of the status of the ACH transfer and account closure process.