Not speaking for Google Fi at all, but one reason your port-in request might be delayed is because porting in (especially from non-major carriers that people aren't familiar with) can be tricky. I found this link a while back doing some research in porting: https://twigby.zendesk.com/hc/en-us/articles/115007464067-Wh... It gives you an idea just how many different ways different carriers can handle it (mostly with account/PIN numbers).