If you are wondering which No7 Stay Perfect Eye Palette the offer is talking about...
I can only persume it's the Stay Perfect Trio Eyeshadow palette (£9.75) other than that there's only solo eyeshadows (£7.50). But don't take my word for it! I will find out though.
It's actually a special palette (see below) that isn't in there normal range...that comes with some lovely Autumn shades.
However the window to do this is quite small - the vouchers are valid until 12th September and the other offer starts on the 8th September, so it's really a matter of 4 days to get the free eye palette and also get £5 off the mascara!
So make sure you make a note of the dates if you have any spare No7 vouchers!