Another alternator problem

I called them and the tech guy said they dyno test everything before they ship it out and said to check the grounds and raise the rpm some. I did all of that for a third time and still no change, so I sent it back in to them with a note explaining it’s issue. Let’s hope it works when it gets back. I’ve had this car for 3.5 years and have only driven it about a mile. This alternator is the only thing holding it back now so this is really frustrating.
So far PowerMaster has been very understanding of everything and I am not blaming them at all.