Have you done a hard reset for a do-over on the local WiFi? In theory, once it’s connected, the server should set up everything. See:
Given that the EUI is publicly available in the logs, the TTI crew will need it - save them asking for it, it just slows things down, just post it. No one can do anything with it unless you post the WiFi code - DO NOT post the WiFi code, it is not needed.
Have you deleted from the console and re-claimed (bearing in mind you can’t recycle the gateway id)? I wouldn’t try this unless I was really desperate or me (because I have other gateways and danger is my middle name).