Yes, you can return multiple items from multiple orders in a single package. However, it is very important to note on a note or document which product belongs to which order number so that our returns team can process this easily and clearly.
We also recommend reading our explanation about returns here.
This way we can give you a label that is also traceable to us. If something goes wrong with the return, we can help you further. When you buy a label yourself, we are not responsible for what happens to the package during shipment to us.