In the past 2 weeks I have been requested to pick people up in gated communities. They did not call security to tell them to let me in. Last night I could not see a phone number to call the person. Security tried calling the homes at the address I had and the person at that home who answered the phone, said there was no one by that name at the house. Since I was not in front of the house, it didn't show start trip. I ended the trip with a no show because I had to wait about 10 minutes for security to try to help. Security told me that 50% of the UBER drivers who come to their gate have the same issue, the people who contacted UBER did not let security know. He also speculated that there was another possibility, that someone called for UBER as a joke, knowing that they could not get past the gate.