We rebooted a node today but that didn't cure the issue - our own email has also been offline and their support doesn't seem to be particularly bothered in prompt replies - last reply from them was 4 hours ago.
At this rate it will be easier to move our entire website/support system to one of our other providers.
There is a possibility that our issues could also be due to an issue that VirginMedia are also having and that there is no 'real' problem with RapidSwitch but trying to get an answer from either of them is like trying to get blood out of a stone.
My dedicated server with RapidSwitch has been working fine, but the VPSes have either had severe issues (VPS Node 9, freezing, reboots required, loss of connectivity) or just loss of connectivity (VPS Node 7).
Apart from this, they've been fine. However, it is rather frustrating.