Had a bit of luck earlier this week.
Was waiting for someone to reduce the 65" C3 at a low price then a company that sells computer stuff, not their main business, so I won't mention them just in case, had it for £1299 plus an automatic 10% off. Then during checkout it said that if I spent £39.99 on their Five Star Membership, probably narrowed it down a bit, I'd get free delivery plus a further £65 off the price. So all told I bought one for £1110.60 and it's being delivered Saturday.
It's now gone back up to £1599 as the starting price. So glad I didn't order a month ago when I first decided to upgrade.