The most common factors may cause to the delay are as following:
1) Misspelt, incompleted or outdated address when the carrier fails to delivery the package.
2)Unforeseen circumstances at the local post office, postal strikes, customs clearance or weather.
3)The carrier may take 1-2 business days to register and receive parcels. This will affect your shipment status.
4)Public Holidays in your location and ours can also cause delays during the processing time.