Looks like there is a glitch on the Argos Jewellery section. Says Buy One Get One Half Price, but some are already reduced and takes further half price off at checkout.
This is what my basket looks like on the earrings.
Revere Sterling Silver earrings - was £14.99, now £9.99, in basket at £4.99
Revere Sterling Silver Cubic Zirconia Double Heart Studs -£9.99, in basket at £4.99
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