Capital One Bank Account Or Service Complaint

Capital One Bank account or service department,

Checking account Account opening, closing, or management Texas

Opened checking & savings account online with Capital One Bank ( '360 Account ' ), received approval / welcome email. Transferred $500.00 to new checking & $20000.00 to new savings account ( funds electronically transferred from my credit union account. Went to log on to new Capital One account and received message I can not log in and needed to call the provided customer service number, so I did. after taking 15 minutes to get to an agent, they told me I was refused a new account. I asked why and they said they could not tell me. They transferred me to 'Customer Security ' department ; same thing, refused and no reason provided. I requested all funds be returned to my credit union account. It is now 2 weeks and 6 phone calls since opening the account, I do not know why I was refused, and I still have not received my funds back. I will try calling them one more time then seek legal assistance.