ao.com are giving £25 cashback for EVERY additional large kitchen product you buy from them in one transaction (ovens, hobs, freezers, microwaves etc...), up to an additional 10 items at £25 cashback each!
I was in the market for a new built in oven and hob, surfed the net until I could find the absolute cheapest price for each then rang ao.com to see if they would price match - which they did. I then asked did the items qualify for the £25 cashback offer and they confirmed they did.
How it works, you make the purchase and get an email containing the cashback offer and an online form. Once the 14 day returns period is over you send in the completed form and the £25 is credited to your original method of payment.
No brainer for me if they are prepared to price match the lowest deal anyhow!
Hope this helps