TTI Exhaust question

I tried ordering through TTI and have had zero luck. It took 3 days just to get them to answer the phone and now 10 days later I still have not been sent a invoice. Did you go through TTI directly or a vendor? Hopefully the mfg side is quicker than the Sales side. Maybe just tyoical for businesses this day and age.
I ordered mine from Mancini Racing. The system is fdrop shipped directly from TTI. Mancini was very helpful with my questions. I just got my invoice yesterday and I ordered Monday.