@Stillwaterdave: I'm sorry to hear of your disappointment regarding this matter. If you purchased the TV through the Blue Light portal, then this may be why you're unable to claim the extended warranty, as the offer only applies to purchases made directly from Samsung.com. The terms and conditions seem to confirm this, as per the below:
"Purchases must be made from the online shop on Samsung.com only. Purchases from other retailers or from Samsung.com EPP sites (under which certain categories of customers who have been provided with a log in to benefit from discounted products) are expressly excluded. This includes, but is not limited to the following Samsung EPP sites: Student, EPP Networks, NHS EPP, Royal Household EPP, SME Open, SME Closed, Samsung Staff Sales, EPP Partners."