Temporarily out of stock, but these are normally around the £400 mark. Normally Amazon forfill orders quite quickly when their awaiting stock. A certified refurb and out of stock is a weird one and I wouldn't be surprised if anyone placing an order will get a brand new machine in plain packaging. Some companies do this to protect their RRP.
Vitamix Standard Blender, 2 Litre - Black (Certified Refurbished) - Amazon - £285.91