Its hard to say when they paid for the car and when they obtained it. The April 2016 agrees with their price listed. I also attached the July as you mention for comparison. Doubtful it was some deal or dishonesty.

https://www.morgan-spares.com/images/3wheel/3WheelPricelist.pdf

http://www.techniques.uk.com/brochures/3%20Wheeler%20price%20list%202016.pdf