A Weekend Puzzle for You! Is it me or them?

I can only see one thing that doesnt add up L , they say 10% off the price , which i assume was £25 , so the discounted price should be £22.50 not £23.75

Unless the 10% discount is an additional amount off £22.25 when you put the code in ???

I was having a blonde moment I didn't even notice it

Someone can't do maths lol.

How interesting. Maths clearly isn't their strong point.... as has already been pointed out.

For arguments sake I put the book in my basket, added the code and they did take off 10% - the book price became £21.37.

I didn't want to continue to discover how much postage would be but on this link uk-support.bookshop.org/en/support/solutions/articles/65000177774-how-much-does-postage-cost- it says

We currently offer two delivery options with Royal Mail for deliveries within the UK:

2nd Class tracked service (£3.99 or free shipping above £25) - order by 3pm for delivery within 3-5 days (Monday - Saturday).

1st Class tracked service (£5.99) - order by 4pm for delivery within 1-3 (7 days per week*).

The cheapest option would still bring the price to more than £25!

It's anomalies like this that make you think you are going mad