I managed to get a hold of MTM on facebook messenger. I mentioned to them that I had called and emailed several times, and even tried to reach them via PayPal over the course of two weeks, and they didn't comment on that at all. They just said I had to send them the TCU to get the chip installed. After that, I decided I wasn't going to send them the TCU. I asked for a refund. They agreed to it. A few days go by and I still don't see it. I reached out to them again on messenger to ask about the refund. Still yet to hear from them... I just turned the case over to PayPal. I have faith in them. They've always done right by me.

Looking for new possibilities, I decided to go for the 034 TCU tune. Sadly, I tried hard to reach them in every way that I could to ask them a couple of questions about their TCU tune, and found that they also aren't responsive. The RS6, my dream daily driver, is my first Audi, after twenty plus years of Japanese and Swedish cars. And so far, the aftermarket support I've been trying to get has been disappointing at best. That's two reputable vendors.. I can't believe how hard it is to get someone to talk to you. Not sure what other vendors/options I have... I'd love to do a manual swap but I need the auto because this car is my daily.

In any case, thanks all for your responses!