I commented on your other service, and since you mentioned that you offer an escrow, you should state if the escrow is not on your own picking for possible connivance.

The only way that a reddit post can be deleted is through a moderator of the subreddits, and if the posts abides on the reddit rules and regulations, there is no way a third party can do that, its for you to convince us on how you can do that since, there is no legit testimonial.

You can also offer a vouch coming from a reputable members of this forum to test if your offer is indeed legit until you can prove that then it casts a shadow of doubts on your service.
You make it look easy to do this removals as if the people on Reddit can be bribed to do that, or you can manipulate their system to implement your service.