Looks like Viking messed up and priced the TV at €6.49 instead of €649.
You can get all the way to check out and get a confirmation email. Am I right in the following?
An Invitation to Treat occurs when they display a good for a price - I.E They are inviting you to make an offer on their offer.
A contract of sale occurs when they accept your offer on their offer. Which is implied by taking cc details and sending you confirmation....
That's obviously very text book......not sure how their T&C works with that though?
Wouldn't really fight them on it.....but it will be interesting to see what happens1