£4 off deal brings it to £21.95 a bottle.
25% off 6 bottles brings it to £16.46 a bottle.
£12 off £80 spend brings it in at £14.46 a bottle and the cheapest delivery is £3.75...so...
Total: £15.08 a bottle. Or £90.48 for all 6 bottles.
Plus this qualifies for the 5p off every litre of petrol voucher. And 90 clubcard points (I think) worth £3.60 in deals.
Available instore at the £16.46 a bottle price.
NB: You need not buy 6 bottles of moet, you can mix and match the wine and champagne to receive the 25% off all wine and champagne deal.