Even cheaper and a calcium apparently they are fine £75 delivered
http://www.batterymegastore.co.uk/product/60038/
Huge Korean Company owned by Hankook has 4 year warranty.
Any retailer with any make of battery could come up with similar tosh.
After all you buy from the retailer not the manufacturer.
So Halfrauds the retailer reconsidered after, another retailer, a Bosch Service centre told them they had made a mistake.