Ok, so the camera is £99.00 so you need something for £1 or more so the £20 discount code will be accepted. Here is what i could find that is cheapest and in stock to add up to £100.00:
£1.50 - Product Code: 11040113
£2.00 - Product Code: 76587605
£2.50 - Product Code: 75106822
So, just add one of those to your basket, and add the camera to your basket. Then enter the promotion code (provided below) at the checkout, and the total should be £80.50 or £81.00 or £81.50, depending on which item you added to your basket to make it to £100.
Promotion Code: TEG876CHH198
Next Cheapest Price I Found Is £129.99 @ Amazon (But I Dident Look Very Hard)
Dont Forget Quidco!