Synergy (Siesta) Seatbelts - extenders anyone?

[Puppypaws]

Greetings from new Synergy owner here. Noticed the seatbelts on the sofa are very short, even when fully let out. Was going to buy seat belt extenders but found out that there are several types of seatbelt fasteners. A, B, C. However, the seatbelt tabs on the Synergy do not appear like A, B, or C.
They don't list a brand name, but have a emblem of a globe on the release button. Anyone know how to find compatible seatbelt extenders?

[Chance]

Have you considered replacing the seat belts with longer ones? That may be easier. I don't know but would look into it.

[JamieGeek]

Have you opened up the sofa? Perhaps they are tangled up or something.

On our Axis the sofa seatbelts are simply bolted to the floor. We can see where they bolt by looking behind the sofa (in our unit the tables are stored behind the sofa so there is room to look and see what is behind there).