Sorry you’re running into trouble!
Presumably you mean by email. They will have sent an automatic reply, so you should check your spam folder and make sure to add glowforge.com to your whitelist.
Posting here also contacts support, so they will have to find this, verify it’s a duplicate, and close it before they’ll fully respond to your email - so we can give you some other things to try, but when you see a staffer close this post you’ll know they’re responding to your email (and in the future, do one or the other, but not both to get the fastest service).
To verify your WiFi is working outside of the the 
try the remainder of the steps here: Displaying as "Calibrating", then reverting to "Offline" - #16 and post your results