Not sure if this should be in freebies or vouchers!
I can't guarantee that everyone will benefit from this, but I emailed Walkers Crisps last week to ask them if they had stopped producing Potato Heads. They sent me a letter via Royal Mail to say that they had put manufacturing Potato Heads on hold for the time being and suggested I try another brand such as Walkers Sunbites - and to my surprise they gave me a £2.00 voucher that can be used anywhere against the purchase!
Not suggesting you email them with the same query - but why not give it a go - you have nothing to loose!
Email them here http://www.1600arlington.co.uk/carm/CarmServlet.svlt/home