...They were the cheapest I could find too.
I've found several UK sites listing the 10-pack for slightly cheaper than that site, but until I get to 25 posts I can't directly link to them here yet, so I'll just list a few of the names for example instead.
The site you bought from the total price for a single 10-pack inc. VAT & postage is
£38.23.
- "Pandoras Upholstery" has it for £32.99 inc. VAT & postage;
- "Blades and Knives Direct ltd" has it for £36.60 inc. VAT & postage.
- "Absolutely Shaw Ltd" (similarly Olfa "branded" on the "olfa.co.uk" domain) has it for £37.75 inc. VAT & postage;
I can't yet vouch for how fast any of them actually process orders & post items out though either.
If you google/bing/duckduckgo for "
Olfa RB45-10 45mm rotary blades" you should be able to see them all.