All these tuners are extremely busy, the big picture, theres a hand full of these guys, and thousands of guys looking for info on tunes. Unless you need to add something very specific, just order what you want from the website, or other vendor. I found best to email little stuff, but i will call all day if i have an issue. Ive tried a couple different shops, though not php, theres just days i cant get through.
I will say No Limit has bent over backwards to fix my pcm issues, though time consuming....shipping etc.. Well worth the wait.