This is why any serious penny player will have 2 or 3 different brokerage accounts with different brokerages so if one does try to prevent you from buying, you always have 2 back-ups........
Which brings me to a very good opposing point, which is obviously, if 2 out of your 3 brokerages are "chillin" the security, then maybe it is good to just move on and look for another play.....just sayin is all.
GO IJJP !!!
Peace, IB