DiscountDuck quantity breaks

I cannot explain how many apps I have looked through to try and get a simple 3 for 2 on a collection of products. I installed this and immediately got offered support on how to do it (I didn't even need the help - its simple steps to do this) Thank you so much for taking it so easy, uninstrusive and fast. I went through other discount based apps and nothing is as easy as this one. Save yourself the time and install this one, don't bother doing what I did.