Buy any Maggi product with the "100% Money Back Taste Guarantee" sticker and maggi will refund the cost of product plus postage.
One claim per household.
Edit: Note the nestle url does state "Maggi Try Me Free", which led me to conclude that it has nothing to do with level of product satisfaction.
If you think this is a "freebie", go ahead and claim.
If you feel that it's "claim only if you dislike product", then don't claim.
Do you need to fill in that section?