Unfortunately there isn't any way to call the NVC anymore. They suspended their phone inquiry number awhile ago and I haven't been able to find ANY phone numbers to talk to anyone at NVC. The only method I've been able to find for contacting the NVC is through the online inquiry form which I've done several times. We always get the same generic answer back, which just says this:
This case is documentarily complete, which means the NVC has all the documents we requested. Your application is waiting for an interview appointment, where a consular officer will adjudicate it.
The U.S. Embassy or Consulate provides the National Visa Center (NVC) with a list of available appointment dates and times. We will schedule your case for an interview appointment when an appointment date is available. We schedule appointments on a first in, first out basis. After we schedule your appointment, we will forward your case to the U.S. Embassy or Consulate General in MONTREAL
We cannot predict how long it will take to schedule your appointment, but we will notify the applicant, the petitioner, and your attorney (if applicable) when an appointment is scheduled. Your case will stay at NVC until that time.
I really don't know what to do! I don't think there IS anything else we can do except wait. It's an extremely hard and frustrating situation to be stuck in! Praying this is the month! I don't know if it's because it's 5 visas together that it's taking so long??? (my husband's and 4 children; they were all DQd at the same time)