Welp, the spa tech must not have come through for me because here is the response from LPI to my BBB complaint:
"The pictures that were provided to us from the customer do show the elected "extreme foam" upgrade, matching the invoice and production ticket. Additionally, we sent a foam kit to the customer and had advised of a work order for the extra insulation to be applied. Upon arrival, the technician advised that the customer had done the work himself, though he was notified on 2/4/25 that we were assigning a technician to the work order. The reference made about seatbelts is misleading, it would be more akin to "these seatbelts are 1/16" less wide than I would have anticipated and I do not like it." Cabinets are not air tight and the electrical components can not be foamed. Thermal pictures show the expected outcome of the hot tub being hot in temperature. Adjusting the temperature when not in use, would decrease the energy expenditure and add life to components. "