Thank you for reaching out.
In your case, please use the original cable and charger attached to charge it for 20 minutes and check if it will power on. If it's still not working, please take a video(the video is about the original charger charging the hub, which responds; but the original charging cable charging the remote doesn't respond to anything) of that issue and send it to us. We will locate the issue and give you a proper solution.
And you can also try to use another USB-A to USB-C to charge the remote and test if the remote is broken or the charging cable is faulty. You can share it in our email, thanks.service@sofabaton.com