Had one of those 10 year smoke detectors start going off regularly for no reason after five years of service. Called the manufacturer, waited on hold a good 20-25 minutes for a customer no-service droid who kept putting me on hold after each bit of info he asked for.
He eventually said they'd send me out another and email me a shipping notice and tracking number when then did. On the plus side, he spoke clear, intelligible English.
About 10 days later I happened to notice a rather soggy package sitting near my front door- which I never use as we come in and out through the garage.
I ran the tracking number that was on the package (they had never emailed me a shipping notice) and it had been delivered the previous day. Unfortunately, it had rained overnight. While the shipping carton was a mess, the retail box was only damp.
Installed the detector and it was DOA- making erratic alarms and not quitting when I hit the hush button. I had to jab the kill hole on the rear of the device with a screwdriver.
I called the mfr again- this time only spending only 10 minutes on hold, and they said they'll send a new one.
Sheesh!