The Stampin' Up! offer is buy 3 packs of the 12x12" paper in the offer and get a 4th for free.
If you don't want to spend £30 on paper I will offer a pack for £7.50 (£9 if you need it posted) of the 4 papers below. Each pack will contain a 6x6" square from each paper in the pack so you will get 48 sheets covering all the different designs.
The packs I am putting together will contain Candy Cane Lane, Presents & Pinecones, Floral Boutique and Blooms & Bliss.
Let me know if you are interested in this or any other combination of the offer if I can help!