When the tracking information shows the status 'Returned to Sender', it means that the process of return has begun and they are now on their way to the store. Unfortunately there is no way for us to know what items are coming back until they arrive. Some orders made it through to the final stages (being put on a plane) but those that did not slowly started being returned to our stores.
When Japan Post suspended certain shipping options to certain countries due to Corona, they already had some order for those countries using those shipping methods. (Abridged version from our Facebook page) About Non-Changing Statuses and the 'Returned to Sender' Status in the Japan Post Tracking Information.
