Free voucher for a 1.5kg bag of PRO PLAN® Kitten Food.
This is a bit complicated (don't say i didn't warn you!) but the 1.5kg bag usually cost £10 so it's quite a saving.
GO TO http://www.purina-proplan-kitten.co.uk
When you enter your details a list of local vets will come up, if you pick the best one for you, drop in and ask for a sample of this food. (it's part of the offer that these vets all have sample packs to give out).
In the sample pack they give you is a welcome letter with it's own code. You then go back to the website, and enter that code with your details.