Not me, personally, not yet...but this amateur tracking company's methods concern me if they start being used more.
I've probably eaten way more in garbage purchases that I didn't bother to get refunds/exchanges on because they were either a hassle, too inexpensive to bother, or I threw away the receipts prematurely because I intended to keep/use them and naively expected them to last longer than they did. I mean things I need, like a third-party phone charger from a Fido kiosk that dies within a month after purchase. I just ended up borrowing my BF's extra charger until I bought a new phone anyway.