Yes, you can cancel your order, only if the status of the order is either partial or new. If your order is filled, there is no way back.
To cancel your order, you have to:
1. Log in to your Bololex account
2. Select "Trading" from the upper menu
3. Go to the “Reports” section
4. Click on “Open Orders”
5. Click on “Cancel” next to the order you want to cancel
6. You can also click on “Cancel All” if you want so