How long after being diagnosed with GD did you see a dietician?

I know when someone gets diagnosed with GD, your ob puts a referral to see a dietician to talk about meal plans, numbers etc. how long from when you got diagnosed did they call you?

It’s been a 8 days for me and still no call, no appointment, no meter, no information.

I called my Ob multiple times to see if the referral was sent but no one returns my call. Is it ok that I’ve gone this far without it being managed?