Plus, neither WD or Seagate request to see receipts.
All should have manufactured dates on the drives and if within 5 years old, it would be worth checking to see if it works and if not doing rma, and selling the returns as refurbished.
also manually check drives younger 6 years, because the original drives might have been registered later than manufacturing date.
Both have websites that you can check warranty.
Seagate is postage to Sydney.
WD Western Digital -> call Customer Service, don't do RMA over the internet, if you call them they will give you free FedEx pickup. Via internet you need to ship to Malaysia.