Argos (Fast Track orders) Quidco, currently 1.1%. Topcashback 10% TODAY ONLY. Possible cashback match = 18.9%
"Quidco will double the difference of the cashback rate offered by a rival UK cashback site (for example if a rate of 8% is advertised by a retailer on Quidco and 10% is offered elsewhere by that same retailer with the same stipulations, Quidco will increase the cashback by 4%, thereby upping the total cashback rate to 12%)"
Might be of help to some.