So you just bought death insurance for yourself and your wife.
You also have signed them up as power of attorney. This is one of the things written in the small print. Didn't pay the premium and let it lapse doesn't matter because the power of attorney is still there.
Power of attorney is virtually the owner of your goods.
But they were nice to you, they don't give a flying rats arse.
Just check or write out a new power of attorney to someone else and rewrite your will.