If you need Checks, Journals, or Binders that are compatible with Deluxe 5Forms.com has the products you need at lower prices like the 377891. The 91507 starts at: $29.40. 5Forms offers a 100% Satisfaction Guarantee on all products and Ground Shipping is free to the US (Shipping Charges for AK, Islands, US Territories, and Canada).
You can Order online 24/7 here 91507 Double Window Confidential Envelope 9 x 3 7/8″ or speak to Customer Service at 
1-855-536-7675.
Customer service agents are available Mon-Fri 9am-5pm EST.