@NFCringTom I'd guess the confusion is that the 'Replacements' section is above the 'Refunds' section, and the replacements section says:
A ring supplied by McLear Ltd has developed a fault within a 12 month period and there are no signs of foul play.
And then says:
McLear Ltd will require an admin/shipping fee of ~£5.
If you don't look closely and realise that the returns section then also says:
The ring has developed a fault within a 12 month period and there are no obvious signs of foul play.
It can be confusing which version of 'within 12 months' is the correct one. Personally I'd choose the one that entails me getting a replacement for free, but @Duddy chose the option where he had to pay £5 :)