FedEx **** strategy

I have shipped an aircraft headset to the USA for a warranty repair.<br> At the time of shipment FedEx did not want to ship the headset to the USA for repair.<br> Their excuse was that they regard the headset as electronic equipment and they don't ship electronic equipment.<br> <br> The only way I could get it to the USA was to have it shipped through the SA Postal Services.<br> The headset is now repaired and the repairing company had it shipped back to me through FedEx.<br> FedEx's agent Anealia Adolph now won't release the headset unless I pay import duties on the full price of the item. The headset belonged to me in the first place why should I pay import duties on an item that belonged to me and for which there is no repair facility for in South Africa? <br>