Did you try the number listed here? https://www.hughesnet.com/moving

They are buried in calls so it's possibly very difficult to get through -- you can always try in the wee hours, when it's bound to be less congested, but you can also wait until one of the reps on this site replies to you on this thread.  They're mighty, but few, so it may take a bit, but hopefully they will get back to you today.

@Jay @Liz