Problem with Discount Codes Filtered by Product

I am struggling to get a discount code filtered by product to work and was wondering whether anyone else had come across the problem.

Hamish - I read Matt's post a bit differently.  Seems he is reporting that when the discount is set as a percentage and against a product, it works.  When discount is set as an amount and against a product, the discount is applied to the entire order (instead of eligible products).

I am never very good at explaining things but Greg summed it up pretty well.

Edited by mattprice - 16-February-2011 at 12:34pm

Yes I agree Its an odd scenario and why it has not come up before as I explained in my first post.  We use the discount code to offer customers free samples.  They are entitled to £4 of free samples and anymore they must pay for.  We do not want the customers using the samples for other products however.   This is where the problem arises. 

Hi Hamish,  I am afraid this will not work because we allow customer £4.00 of free samples but anymore they must pay for.  Most samples are set at a cost of £1.00 each.  Whilst most people choose just 4 samples and checkout at zero cost (after applying the discount code) there are some that put six different sample products in their cart at a cost of £6.00.  They get 4 free and have to pay for the other 2.