Motorcycle and Scooter appreciation

In which case you need an independent assessment to damage and repair cost. This is normally how you end up with a financial write-off, purchase bike back, then repair with the money. Get to your mechanics and see how they could help write a quote up.

This is already what I've done. They came up with a frankly slightly outlandish price, think original Triumph components, but it would have gotten the bike to pristine condition.
I'll give them a buzz on Monday to ask them to expand on the insurance jargon.
Insurance is Devitt btw. They're incompetent, their third party assessor, which is 4th Dimension (they assess for a LOT of other brokers) are outright fucking cons. Aviva, which is the actual insurer, have been helpful.

@konastab01 The value suggested isn't actually out of line, it's just a case of vague terminology that's difficult to discern. If they want my bike as salvage, they can fucking do one and Ombudsman are getting involved.