This forum is not a way to contact Dreamhost Support - it’s only a “customer to customer” discussion forum.
At any rate, I’ll take 2 minutes of my time to respond anyway:
Sounds like you didn’t keep your “contacts” email addresses in your “whois” information up to date.
A careful read through the Dreamhost site will provide you with a phone number, but it will only get you to a voicemail box. Dreamhost does not provide, and never has provided, support via telephone.
To contact support, log into the control panel, select support, contact support, from the menu on the left side of the screen, and complete the form.