I've never tried this before but this month I have signed up to a birchbox subscription. The code gave me £5 off a £10 box and I could pick the shade I wanted of the benefit lipstick and liner in one. I wanted to try that anyway so thought I'd try it and if no good cancel. Anyway, I've added my referral code in case anyone else wanted to try with £5 off?
www.birchbox.co.uk/invite/6xjl2