Banner ad spotted on the homepage. In-store only so can't order them online.
Lincraft do have some good 40% or 50% off storewide sales from time to time where these could be handy.
They reserve the right to limit them. Deal ends Sunday 14th May.
It also says "Please note to receive your voucher you must subscribe"
I take this as meaning you must sign up to receive emails or to their rewards scheme when in-store collecting the vouchers?