ok just tried to buy one of these from a certain laptop site, turns out they don't qualify for £100 cash back and despite the server advertised as £198 they charged me £840 for 2....
needless to say ive cancelled the order and am looking else where, BUT where? how do I check that a site is an approved seller and qualifies for £100 cashback?
I know competitor links aren't allowed but I need to be pointed in the right direction.

needless to say ive cancelled the order and am looking else where, BUT where? how do I check that a site is an approved seller and qualifies for £100 cashback?
I know competitor links aren't allowed but I need to be pointed in the right direction.