Hello, Lindsey!
While I haven't personally received the voucher you're mentioning in your question, I will say that you may get an attachment to your receipts at various merchandise locations which offer you discounts at shops such as The World of Disney if you shop during specific hours. These are usually off-peak hours, so keep your eyes peeled for such offers!
You never know what magical offers Disney might send your way at any time, so do some research and ask the folks at
Vacation Package Booking if they foresee anything coming up during the time frame that you're thinking of traveling to Walt Disney World Resort, as well. I've gotten some great suggestions from those Cast Members who book reservations, since they are in the know, so to speak, about various offerings per time of year.
Just FYI, if you are an Annual Passholder, or a Florida Resident, you can purchase the Tables in Wonderland card, which offers you a 20% discount on your food and beverage choices at numerous Walt Disney World Resort locations at ANY time of year!
Check out this link for more information.
I hope that this helps you in your planning of your next WDW vacation! Please send us any additional questions you might have as you work your way toward your next trip to the Magic! :-)