RG680650675CN arrived in Sweden in December. PostNord tried to deliver it but for some reason was unable to. The item is now being returned to the sender in China.

You should open a claim for non-delivery and try to get a refund from your seller.

2017-12-09 09:10 The shipment item has arrived at the country of destination.
2017-12-21 08:47 Delivery was not possible. The recipient will get a notification with information on where the shipment item will be available for collection.
2017-12-21 14:09 The shipment item has been delivered to a service point
2017-12-22 12:31 A letter notification has been sent to the recipient 
2017-12-25 14:14 The shipment item will be returned
2017-12-27 18:03 The shipment item is under transportation