Morrisons are offering 25% off at present if you buy 6 bottles of wine - expiry is 6/7/2014.. This wine is £3.80 normally but with the discount it is £2.85. Its 12% and like most Aussie wines, its great, not too dry.
If you want more than 6 bottles, you need to buy them separately i.e. buy 6 at a time to get the 25% off each time.
Morrisons are also doing £20 off if you do 3 X £40 shops, so you could combine the two deals and get your wine even cheaper. 6 bottles of this wine costs £22.80 before the discount and £17.10 after, but either way, it uses up quite a bit of the £40 for each shop.