Just happened to be talking to my securities lawyer today (at $400/ hour, gag). If you INTENTIONALLY and KNOWINGLY set out to violate margin...
This just sounds like you follow the principal that,... "two wrongs dont make a right, however, three do!"
First , call IB and demand to talk to their Compliance Officer. Do not let the rep off the phone until they give you a name and phone number....
Separate names with a comma.