If you want to cancel your open orders from Bitkub website, click How to cancel open order
1. Log in to your Bitkub Application
2. Click on "Market" on the bottom of the screen and choose the coin that you have the open order.
3. Click on "Order" on the right of the screen.
4. You will see your buy/sell open order. Click "Cancel" to continue the cancellation.
5. Click "Ok" to confirm the cancellation.