Empire stores has these on sale @ £14.99 (per bottle),but they are buy 2 get 1 free......but also they are buy 1 bottle they send you another free.
If you buy 3 x £14.99 goes basket at £29.98,then use code £15 of a £30 spend,they come down to £15,so that's 3 bottles
then another 3 free they send you,so 6 bottles for £15 divided by 6 is £2.50 per bottle. SEE SCREEN SHOT
Not to everyone's taste,but handy for xmas i thought.
I am an existing customer already and tested this with my account,not paid by card.
Also 7% Quidco too now....takes about another £1.00 off :)