I'd say something smells fishy just reading this thread. It's claimed they can't wait to work on your car, but then don't even bother to let you know that they're not going to show up.
I know Powerchip does tuning for a variety of manufacturers so I wish you luck in getting it done. It sounds like a nice increase if it can really deliver what they claim as far as torque increase.
2013 Audi A4 - Premium+/Sport/MMI/B+O Audio
2007 BMW E90 335i (retired)