I cannot speak for them as to why you got no response , but I'd suggest calling them.
Tim is the guy who helped me out.
I also filled out the request form , but did it after our conversation.
I have heard good things about Oregon cam co. from others and I know more than a couple who swear by Isky for big block MoPars.
But the level of detail that went into picking my grind and their willingness to hear what I was saying sold me on Bullet.
There are options......and there are some I would avoid.
But it is personal preference ( or known history ) and how you feel after interacting with them that should ultimately steer you in any direction.