Found this on (credit to Dib) MSE and can't see it posted on here, it's such a good deal I think, it's worth sharing.
Buy, Tesco Finest Old Vines Cotes De Roussillon wine and it's £7.99, or 2 for £8.
Then you get 20% off the original price as well. (when you buy 4)
Max you can order is 12, I got 12 delivered (£1) for £29.
Just over £2.40 a bottle.