We're so sorry for the hassle, but unfortunately, at the moment there is no way to combine orders from separate campaigns. This is because each campaign is printed and shipped separately.
However, If you have placed multiple orders from the same campaign, and all of these orders are being shipped to the same address, feel free to contact us by providing us your order number.
We can offer two solutions for you:
1. If the campaign has ended, we would be happy to refund the cost of your extra shipping fee(s). The items may still arrive in separate packages, but this way you will not be unnecessarily charged.
2. If the campaign is active, we can help you to cancel your order and you will then re-place it with the correct item count.