Why has the site suddenly slowed down to a halt, and sometimes can't even load. I know for sure it's Plusnets end as every other person I've asked to view the site has been able to and has been on a different ISP. Has Plusnet blocked the site? All seems a bit weird to me. I just hope they sort their act out.
How much have you downloaded since your last billing date and when was that date?
PN have a 15GB peak time usenet limit on the old usage system and 20GB (which also includes P2P & FTP) on the new. When you reach those limits, your usenet speed is throttled.
The new usage limits would come into affect after your next billing date that occured after 7th Dec. Also note the usenet usage on the new limits is counted from 8am to midnight but the VMU only shows peak usage from 4pm to midnight.