As someone who started with Defy for that purpose, it's not really a specific program to get hcg easily. You are a regular customer like everyone else. Same labs, same follow ups. The prescribe what you need. If you happen to not need a prescription for testosterone from them, then they just get you a prescription for hcg or anything else you medically need.
I like doing it this way so I get suggestions on my testosterone dose from someone interested in me feeling good, not being "in range." Possibly I am lucky that I got a rx from my doc for 200mg/week, so I just do what defy suggests and make sure to stay under the rx dose.