GLITCH! Debenhams 3 for 2 Taking off 1/3 of the Cost of EACH Item!
So you add 3 items to your basket, 1 of them being the most expensive item and 2 x smaller priced items and at checkout it seems to be taking off 1/3 of the cost of each item instead of the cheapest.
Here is one of the examples. Note I added 1 expensive item and 2 x smaller priced items to show how it works: