You can link an order to a showcase from 7 days before to 7 days after the showcase in 2 ways:
1. At checkout before entering the card details.
2.On the order page once the order has been placed. Select from the drop down box under the order status box the correct showcase and click link next to it.
Please note that we are not able to link an order to another showcase once it has been linked to the original one.