They make it as difficult as possible, wearing you down to the point of giving up. THE WORST!
Purchased a complete package with 6 cameras (1/22) from COSTCO. Time passed before I could install it. Got it up and running and then purchased a 7th camera (1/23) an 8th camera 4/23. One of the original cameras was problematic from day 1. Since customer service was making things so difficult, I bought a 9th camera (6/23) so I could get the problematic one down from 18 feet up on the ceiling to photograph the serial number with hopes of getting some help. NOPE! They just play rope-a-dope.