Mate, you need to find out how much you were leveraged?How many...

Mate, you need to find out how much you were leveraged?
How many actual shares did you have control of?
Its good that you were using a stop but if the price gaps down below your trigger price you could be liable for the difference.
You need to find out if you had a guaranteed stop loss order in place.
Click on "open positions" and see how many shares you are controlling, then click on "edit order" or "working orders" and see if your stop loss is guaranteed.
Who is your cfd provider?