TLDR: - DL locked my account without any notification, asked me to fill in a verification form and upload ID, but no communication/indication on how long the process takes to resolve. Any recent experience here?

This morning I could not log into my skymiles account. It simply errored out saying something like "no account with those credentials". I manage my kids skymiles accounts and those logins were fine. So, I attempted to change my password, got emailed verification codes etc., but at the final step it gave a generic error. That gave me pause so I called the DM desk and the agent said, yes I can see your account is suspected compromised and locked until your identity can be verified. Upon asking when the lockout happened she said yesterday. There was no notice/email whatsoever from DL about this - I'm just happy my next trip isn't until Sunday (and all trips are intact when checking as a guest with PNR). I filled in the ID verification form and submitted, but again, other than a splash screen saying it was submitted, no confirmation email, no case number, no anticipated time window to resolve etc.

All I found here and other places were older threads, so I'm wondering if any has had to do this process recently and how long it took to resolve it?