One code can be applied per item in your Shopping Cart.
If you have multiple codes, and wish to order multiple copies of the same product, please add your completed products into your Shopping Cart separately; once for each code you wish to use.
In the first example below, only one code can be applied. However in the second example, two codes can be applied.
e.g. one voucher code can be applied to the below
e.g two voucher codes can be applied to the below