Right now you can pick up the Surface Pro 6 with Signature Type Cover for £749.99, which hacks off a heavy £279 Amazon's usual price of £1,029. The model includes a Core i5 processor, 8GB RAM and 128GB SSD storage, which costs £879 from Microsoft directly for just the tablet alone. The Signature Type Cover, more premium to the regular Type Cover due to the Alcantara finish costs another £149 from Microsoft, but comes free with Amazon's bundle.
Microsoft's bundle (called the "Essentials Bundle") on the same device starts at £1,018.98. For this, you get the standard Type Cover with £25 off (now £99.99), along with Office 365 Personal with £20 off (now £39.99). The bundle doesn't discount the tablet itself, though.
Keep in mind, you can only get this special price with a Prime account. If you don't have Amazon Prime, you can sign up for the 30-day free trial. Amazon has also cut £20 off the annual membership price, which is now £59 per year but only until tomorrow.