Seems I spoke too soon - bizarrely Ozito without expanation reneged on their offer of providing a replacement blade out of good will. I cannot understand why they did this as their initial email stated and I'll directly quote what they wrote:
1st Email from Ozito:
Are you able to provide us with some photos of the blade? Our blades do not get sold as sharp as you are describing. But if the blade you have is as sharp as you describe, we would be happy to send you through a replacement free of charge as a gesture of good will.
So I send through photos of the blade angle and of a sheet of paper being cut with it just by drawing it across it (which we all here know is NOT what a lawnmower blade should do) - I get this response:
2nd Email from Ozito:
Thanks for providing those photos. From looking at these photos, I can assure you that this is exactly how all of our blades come in all of our lawn mowers. The blade is designed to be this sharp to get a cleaner cut on the grass and having a sharp blade will prevent the grass from getting brown tips.
Suffice to say I was confused with the change in tact from email 1 to email 2. Asked for explanation, ignored for the past 2 days.