avg sell was around 34000 squared off around 36000--362000 margin i thnk was 750/lot silver mic
Such necessary margins needed to be kept in acct always while holding the position. If not able to have more money, you should not be betting the full amount.
Now just call the broker and negotiate kindly with them the full penalty charges (not the deficit) by saying so that you will continue trade with them and pay the full deficit.
If your broker is not so kind of you, pay deficit+penalties and close the brokerage acct with them.