Of course, we would like to be able to reconfigure the shipment as you request, but our safety regulations unfortunately prevent this. We need to ensure that all products received can be easily returned, therefore our employees cannot just open and combine packages. This helps us to avoid any unnecessary errors.
In plain language this means: Each package sent to us, is also ready to be sent out again, and no outer packaging is allowed. Each package we receive counts as a cost, which is why we specify an individual shipping cost for each return package. However, you can avoid this by sending us all your items in one package. Then, of course, your return shipment will also consist of one package and, you as a seller, will bear just one set of return costs.