I think your better customer service strategy at this point is simply to accept that there was a mistake made rather then throwing these weak arguments back at me.
We absolutely realize that the activation method for these games leaves something to be desired. The system has a lot of limitations and we work hard to give our customers a good experience in spite of these limitations. I am trying to understand why the problem occurred in the first place so we can make the process better for everyone, and this requires asking questions about what went wrong. I apologize if my attempts to understand the issue are coming across as excuses, because there is no excuse for a bad customer experience.
Anyway, please let me know if you have any trouble with the activation keys I sent yesterday. (I sure hope not!)