If your Edit button has recently disappeared and you're wondering if you've been assigned a VIN but can't see it yet here's how to check.
1. On your car's page View page source (from Chrome: Ctrl-U)
2. A new window will open with a bunch of html code; search for 'EncodedVIN'
3. To decode the VIN copy/paste the encoded VIN to this page: https://www.base64decode.org/
I did these steps yesterday to find and decode a friend's VIN. I still have my Edit button thus don't have an EncodedVIN.