You should get all your escrow ISK back (minus the broker fees) if you cancel a single order. However, the escrow is calculated on all your orders, so some of it may have already been used to pay for other orders you made that did complete. That’s probably where the rest of your ISK went.
hi, yes its normal, because you have maybe trained the skill “Margin Trading” (level 2) it should be.
If not check your journal, not the transactions, in journal you should see the history