# By sending a text message you agree to receive further text messages regarding this promotion, future promotional activity/market research run or conducted by Cadbury Ltd., and other related or associated businesses. You can unsubscribe at any time by texting STOP to the number on the inside of the promotional wrapper.
Except that when you send STOP, it comes back with "Sorry sport we didn't recognise ur code. Hving problems? Pls refer to ur phone manual (etc,etc)"
Their helpline tells me I need to surround it with "exclamation marks, like on the packet". Those are single quote marks (and they're missing from the online rules). "Oh yeah, them".