This needs to be completed before Sunday 30th and is only a small amount of work on an existing shopping cart.
1) Fix a PHP unlink() error.
2) Allow users to add a "FREE Sample" of product to their Cart.
3) Have discounts per Qunatity (e.g. 100 = £20each, 500 = £15each).
4) Delivery Costs per Quantity (like above).
The database and code is all ready. Should be very straight forward. A few more lines of code and some Database alterations.
Please remember it has to be completed before Sunday 30th.
Checkout System is Worldpay. I'm not sure if this matters but you need to understand this system in order to do this project just incase.