Amazon needs a proof of delivery for refunding discrepancies from our shipment.
We used DHL as a courier, called them multiple times, seems like no stamped proof of delivery exists on their side now, also no confirmations of the weight.
How are we able to resolve this issue? Has anyone been succesful by only giving them the invoice and the tracking that confirmed delivery?
Is UPS the better choice? I heard something about them weighing shipments.