You're getting a few saucy replies but it does work and you don't even need a physical letter. Find the "Our Leaders", "Our Corporate Team" section of a compani

You're getting a few saucy replies but it does work and you don't even need a physical letter. Find the "Our Leaders", "Our Corporate Team" section of a companies website, drill-down to the best fit, send an email. Some executive assistant will pick it up and re-direct appropriately. This has worked for me with UPS and Verizon. The complaints were not run-of-the-mill ones though but specific to ongoing issues. I think the key is having a unique problem. Also, if you're in the US, it might seem futile, but you do have elected officials and a massive government bureaucracy that tracks all this. Include them on the email if it necessitates it. Every email or letter has to be recorded, by law, so, if it's ever needed as evidence in something, it exists.