At the beginning of February I ordered a replacement SIM pack from 2degrees online store. (old phone failing, had a new phone which will take a microSIM, original standard size SIM in current phone).

This was shipped with Courierpost. It never arrived, tracking information shows it being scanned out of the depot by a driver, but never anything after that. I rang Courierpost they tried to track the package but say it is officially lost. They tell me to contact the sender and get them to initiate the lost package procedures and arragne a replacement. I contacted 2degrees again and let them know. They are saying they can't initiate this, it is up to Courierpost to tell them it is lost. Courierpost tell me it is the sender who need to make the claim. In the meantime I am left without a working mobile.

In the past whenever an item has been lost in delivery it has been up to the sender to arrange the replacement (They are the ones who contract the couriers after all) Why is it in this case neither party will take the next step?