I subscribe to InStyle magazine and therefore hear of their forthcoming offers a couple of days before they go live on their website.
In the September magazine they have the following offer:
Visit a Prescriptives counter for a make-up consultation and take home a FREE 3ml Moonbeam Reflective Lipgloss in Aurora and a sleek cosmetics bag.
Just go to www.instyle.co.uk/competitions, print off the voucher and take it along to your nearest Prescriptives counter.
I expect the voucher to be available by the 1st August - I'll keep checking and will let you know when its online. Link is https://instyleuk.ipcmediasecure.com/competitions/show/id/4874
Fi