Negative in CASH from my RRSP account investment portfolio?
I transferred all my RRSP and start to invest is USD stocks. Then I had some gain and my account had CAD and USD balance (it seems that the funds converted back to Canadian to maintain my initial deposit as I always set settlement fund to USD when sell it).
Then I use all my funds to buy another stock and it was dumped and my account end up in negative CASH balance which was over 100% of my portfolio. To be more precise, it was 113% of my portfolio. So, I have no choice but to hold the stock for its price to go up, but my account is still in negative because of that 13% over. I called and the agent and he put me on hold for over 5mins... Then he told me the problem was due to the fact that it miss calculated it - because of the conversion from CAD to USD, so it went through buying the stock even if my account did not have enough money. He said that this should not happen with my account (well, it happened dude). Because of this, he told me that the solution is to sell part of my shares to pay it and I will have to afford 20% as marging interest end of the year because I hold it for over 2 weeks. At the end, he throws blame to me telling me that I am the one responsible for the purchase as I have to make sure to have sufficient funds before buying.
Because of this, I sold shares to cover this loss and my portfolio is now 97% (instead of 113%).
How is that even possible? I dont even have margin account and the fund was from my RRSP!
Can I sue them?