Yeah, this is simply downright unfair. I seem to remember others a few weeks back (who had used the codes) that had to have their orders recreated - whom managed to still get their 10-30% discounts, albeit not stacked, but still allowed to have them.

Why isn't it possible for us now?

I suppose I could re-order with the 10% quidco/tcb cashback sites... it's just nowhere near as low as my original. *sigh*