I need clear and precise instructions on how to create a coupon code which will add a specific item, free of charge, to the customers cart if they spend £300 or over. We want to do a Christmas offer for our customers but I can't seem to master creating this code! A code which discounts the order to the value of the item when it is added to the basket would do, if the desired coupon code cannot be achieved.
I don't want any solutions which involve buying add on's or plug ins.
Would really appreciate some help on this, thank you!