Phillips was flagged for a hit on a defenseless Miller during the first quarter of the Seahawks' 36-25 victory over the Giants on Sunday.
Phillips hung up both letters from the league in his locker Wednesday, with the fine totals circled. He wrote "HELP!" at the bottom of the first letter and "PLEASE HELP" at the bottom the most recent one.
The NFL requires centers or offensive guards to wear microphones.
Birk said he tore off his microphone after it came loose and was jabbing his neck. He said because he couldn't reach it, "I just took it off."
Birk said he will appeal the fine, partly because he didn't know he couldn't remove the mike. He called it a "misunderstanding."
The Associated Press contributed to this report.