Just letting all you people know I ship around 500 packages a month with Fedex. I might have one problem with them in 2-3 months.
UPS is the same but they cost more $. DHL is cheaper but service is slower. USPS is great for small items. I ship approx.
300 items a month with them and maybe one problem in 5-6 months. All of them have their problems from time to time. You can't get around that. No shipping company will ever be 100%.
People work for them and nobody's perfect nor will they ever be.