I tried the pingdom tool and it says 'URL doesn't exist'
finally managed to get through to support live chat, after about 6 attempts and here's the transcript:
Todd: Hello

Welcome to Certified Hosting Live Chat. This is Todd, how may I assist you today?
p: hi, i'm xxx
p: just complained earlier about server speeds... support said it was fixed... now all sites down, can't get access at all?
Todd: Yes, we are aware of the issues and working on them already
p: what is the issue, I have to say I'm getting frustrated with this server, big time!!!
Todd has left the chat conversation
Click Here to Leave a Message
... not very nice is it?