checked before posting and this was not already on this site - sorry if it was.
This deal is basically the same as the one at Tesco Direct but the latter has again out of stock.
But, the price on the subject line is before delivery charge as I am not sure whether Dixons are still charging for delivery for this item. If they do, then it should be £347.44 - again, i am sorry if the information on the subject line is not completely correct.
3% at topcashback plus you might be able to use £35 off voucher if you spend over £500 and if the voucher is still valid by the time you make the purchase.
hope this helps someone.