A similar deal was posted earlier in the year, and we got some really good T-shirts, so thought I would get some more. However the deal has changed slightly and it is now 6 x T-shirts for £20 so not as good as the old deal, but still not bad really!
However, I ordered 2 boxes and it applied a discount of £3.70 for some reason (saying it was a 2x£11.75 T-shirts for £20 offer, but of course it wasn't!). Total was £36.30 for the 2 x boxes each containing 6 T-shirts.
They are no longer on Quidco unfortunately.