BYD Seal and V2L Adapter

Just a quick question regarding the vehicle 2 load adapter. I have a Seal Design in the UK but was not supplied with a V2L adapter from new. I have heard of others who have received them and even Atto 3 and Dolphin owners who got them with their cars. I can't find a definitive answer anywhere about whether or not it should be included with the car.

Any ideas?