Tablet Internet not working

[#1]

I have just topped up my sim on my tablet but everytime I go on the Internet it says "cannot open page cannot connect to server" I'm confused as it worked a few months ago! Please help

[#2]

reinstall the settings

[#3]

What tablet is it?

iPad settings found here:http://bit.ly/giffgaffiPad

[#4]

Amazin thanks

[#5]

Settings for ipad

http://j.mp/giffgaffipadsettings

[#6]

Are you using a gigabag sim.

[#7]

Don t use a sim with 10 goodybag because that is called TETHERING and it is not allowed you will be barred if you do that...you need to buy a gigabag for that sim ...it is cheaper than credit anyway...I reccoment the 3GB gigabag...