I just tried the number you posted 1-888-743-4783 and got the same thing, instant answer and a number for "exciting" chat. I have something "exciting" for Register.com

No punishment to great for the $%^heads that did this. Fry'em alive.

I received an email from Register.com about their "disruption in service". At the moment, I'm unable to reach their server. I called the number at the bottom of the email and it has a recording to call a chat line. So, was that spam? Or did they get so many calls they had to change their number?
1-888-743-4783