I am facing problems with FedEx too! They are refusing to pick up the return shipment, citing “export policy” restrictions on the value of the shipment. I am “FedUp” explaining to them that a “Return” is not an “Export”, however, they persist in consulting with their “Export Clearance Team”. Unfortunately, FedEx is probably the best that you can get.
Purism has always been stellar though. Very prompt and helpful.