AHB kits are pretty easy (but very good) and I have to think that you just measured a bad area of your wort. I bet you are in reality real close to your OG - UNLESS - they have the recipe wrong (it's happened).
Grinders Island Brewery - Pipeline
138 batches and counting
European IPA bottled, One Putt 12 IPA carbing. East Indian Porter on tap. Looking into a Saffon Beer