The Telegraph is currently offering a unique promotional code, which will add a free The LEGO® Batman Movie Battle Pod set. The page seems to suggest you need to spend £30 or more on LEGO Batman products to qualify but it appears to work with any purchase over £30 and you’ll need to use a unique code generated on the Telegraph deals page. The promotion can be combined with the free Back to School stationery set and Summer Minifigures packs, should your order reach the spend amounts required for those GWP sets.
Please note, it seems that once the code is applied, the item doesn’t actually appear on the order. It should, however, be listed on your order receipt. Check out the comments on the Telegraph offer page for details