The trust plan is made to reward frequent commissioners as a thank you for commissioning me! If you commission me often, you will receive a discount from your commissions permanently! This means you have earned my trust, and I know you to a degree. But be warned, if you break my trust or break TOS to a large degree this will be taken away.
Discounts can go from just $5 off to $15! It ranges depending on how expensive your commission in total is. I try to remove a decent amount to make it still worth for both sides!
Just talk to me and commission me a lot! You simply can't just ask for this, as it is rewarded to people that I trust and have connections with.