I have to second that. It took me over a week of playing the game of "answering stupid questions one per day" before I finally managed to get an RMA-number. Now that I've returned the defective module to them, I've heard nothing - zip - zero for another almost two weeks.
I should have had a replacement module in my hands the day after I reported it as being broken. But no, it was "For today, try it under firmware version 96.1 and tell me what happens" - still doesn't work. Next day "We'll be releasing firmware version .98 tomorrow, try it with than and see what happens" - still broken. Next day "Try running it for 24 hours to see if the problem clears up" - still broken, and on and on, etc., etc, etc.