Even $30 is alot. I sold my own Steam moneymaking method before, only for $10. If you're getting payments in BTC (Which I know steam doesn't do), you must be farming some third party site. So do you know how long this method has been working, and please disclose whether this method does or does not involve cracking accounts with balance on them.
If you can provide a vouch copy I can vouch for your service I guess
Requesting vouch in exchange for honest and objective review as 30$ is a lot
Just don't give a vouch to a newbie.