[mothered]

Each company differs In the way they handle their Items, so as a starting point, I suggest you read their TOS and see the availability of loopholes there.

Pretexting Is a very Important factor In SE'ing- you need to create a scenario where the person on the other end believes and complies with your request(s). Do some research on the company Itself. Identify the terminology used, the questions raised, how they expect to be answered and most Importantly, the vulnerability of the person you're communicating with at the time. All this will significantly Increase your chances of a successful outcome.

There's a lot more to It, but I've just simply provided a general approach. In terms of protecting your anonymity (IP), use the "Tor Network" and In conjunction with that, also Install a VPN that keeps no logs.