Thanks Brydo.
Another potential offer in Scotland is £250 cashback on Motability Toyotas at Helensburgh Toyota, Helensburgh, Argyll & Bute:
Although there is no mention of it on their website, the ad below was posted on their FB page on 20th of last month. So could be worth discussing with them:
https://helensburgh.toyota.co.uk/motability (or contact them via their FB page)