I sent an email requesting to participate in the IPO, they reply...

I sent an email requesting to participate in the IPO, they reply asking for amount of I want in the IPO, I sent email stating amount I wanted, they then said they will contact me.

Next thing I knew they debit my account, which was now negative.

They then called asking if I wanted the shares, I said I will need to think about it but If I did I will send the money.

Few days late I got another call, saying I must sent the money today & otherwise they will sell my other share to cover it.