Amanda Bynes has reportedly been dumped ... by her marijuana dealer.
The reason she was ostracized: Bynes' alleged hijacking of his supply.
According to an insider, Amanda Bynes' weed dealer was making a delivery to her NYC residence when the theft occurred - right under his nose.
Says a source close to the marijuana heist situation:
“Amanda’s dealer used her bathroom while he was there and she jacked his weed. He didn’t realize at first because he’s a delivery weed service."