Site5 CPanel Borked For Three Days And Counting

[I am reposting this with some details after receiving some helpful advice from the Moderator.]

For three days now, key features of Site5's "SiteAdmin" cPanel wrapper have been broken, which has made it impossible to do any of the following:

1. Add Parked Domain
2. Add a Domain Pointer
3. Access or change DNS zone file
4. Turn Shell Access on or off

This has made it impossible to set up additional domains on most or all of their shared hosting accounts. The only way to accomplish any of the above tasks is by asking Site5 Tech Support to do it, but one Support rep told me yesterday, "I am sorry...but this cannot be done...there are too many tickets flooding in with the same request."

After having a Support ticket go almost 24 hours without a response of any kind, I got lucky very early this morning and spent 1 1/2 hours in a Live Chat with one of their Support reps, who, because of his knowledge and diligence was able to accomplish what I could not do via SiteAdmin/cPanel. But I seriously doubt that many others will be so lucky.

This apparently started when a cPanel update was applied fleet wide without properly testing it against Site5's SiteAdmin code.

Site5 has posted a notice of this problem at [url], but, even after three full days, they have posted nothing about a resolution.

I have posted a message to Site5 management at [url], but nobody in management has responded either publicly or privately.

Is the entire Site5 Management team on vacation?