There seems to have been some interest in my purchase so here's the deal....
I submitted a price match with John Lewis here:https://www.johnlewis.com/never-knowingly-undersold
The Canon 6D is listed on their site here for £1379 (Product code:82903304):http://www.johnlewis.com/canon-eos-6d-digital-slr-camera-hd-1080p-20-2mp-gps-3-lcd-screen-body-only/p231780208
SLR Hut have the 6D for £899.95 here:http://slrhut.co.uk/product/ID1538C5/view
John Lewis don't typically match online retailers like this, however they have a UK (London) presence, so when completing the form I added the following:
For "competitor price" section under the price I said that the retailer is both online and in London.
For "Where did you find it cheaper" I put High street competitor website
The rest should be self explanatory (I got email back from JL within about 1.5hrs) and its valid for 28 days.
Note: You have to pay the full price of £1379 to John Lewis who then refund you the difference AFTER you've bought and confirmed everything OK. Then you submit the details to Canon for the £150 cashback here:http://www.canon.co.uk/summercashback/
Picked mine up from John Lewis today so happy days (you can have free home delivery if required).
Don't care if this goes hot or cold - putting it out there as a deal. For me it's probably the best bargain I've come across (~£1400 camera for £749!) and I've been wanting a 6D for some time.
Happy Shopping :)