[Site] Kleenex - "Hayfever map"

Because Your Favourite British Rapper said so....

For all hayfever sufferers:

Put yourself on the Kleenex® Hayfever Map!
To help Kleenex® build a real-time picture of how bad hayfever is in Britiain, simply send a Tweet with the first half of your postcode, how bad your hayfever is (from 1-5). You'll also need to add a tag, #atishoo so that we can find your tweet.

It should look like this:
#atishoo W1W 3