Computer maker Tiny today launched its T:Surf Value ISP package aimed at students and school children, which it claims is cheap and unlimited. But it's not all it appears to be.

The new service offers users unlimited internet access but only between 4pm and 8am weekdays and at the weekend for £8.99 a month. So it's not really unlimited at all.

"T:Surf ensures families, students and school children can really surf the web without the worry of huge telephone bills," said Colin Greene, managing director of Tiny Online.

But if users wish to use the internet outside these hours they will be charged 2p per minute, with a maximum call charge of 5p. This may mean the package ends up costing more than AOL, BT and Freeserve's unlimited packages which retail from £14 a month.

"Unlimited internet access packages should be just that," said a Freeserve spokesperson. "It is confusing for users to ascertain which package is best for them anyway and complicated jargon just makes things more difficult."