Thanks again for your reply. I pre-ordered the FPView goggles 11-20-15. I paid $599.90 . I see now the price dropped $50.00 . Yesterday I e-mailed sales with no reply yet, and just today I e-mailed service. I’m asking if they could credit my account the price difference, or should I cancel the order and just re-order at the lower price. The order number is #2646. Can you help resolve this before you ship the goggles?