Can't contact lender or servicer: Payday loan, title loan, personal loan, or advance loan

I submitted an application to Cashera LLC for funding and granted them access to my bank account through an online linking portal. Over the past three days, the company has completely cut off all communication and is refusing to respond to emails, calls, or portal messages. They are currently holding my highly sensitive personal application data hostage and retain active digital access to my primary bank account without providing the agreed-upon funding. I am demanding that Cashera LLC immediately respond to emails or calls. If this is not feasible for them please delete all of my personal data, revoke their access to my financial institution, and close out my application file safely.