Accepted order cancelled?

I placed an order 12 days ago for two Laptops and I received confirmation of the order and delivery dates in Mid-January.

However I've just today had an Order Cancellation email, which I at first thought was Spam .. but logging into my account I can see the order has been cancelled.

I can see the same products still available for sale today, but now without the Black Friday discounts.

Can anyone help by looking into this to find out what's going on ? Happy to provide the order's details.