Untracked packages are to be used at your own risk. There will be no returns/refunds for lost untracked packages, as I or the postal service cannot guarantee these once they leave my hands. You cannot purchase Route shipping insurance on untracked shipments. The description under the untracked shipping methods warns you of this, and refunds will not be given for Route if you fail to read what you are purchasing.
With that being said, I have had very few issues in the last year with untracked packages - I've only had issues delivering to the UK in recent months, the rest of Western Europe is fast and reliable. UK Customers, please consider a tracked Canada Post service or DHL.
$4.99 Untracked Bubble Mailers (Oversized Lettermail) within Canada are also very reliable and timely.