Welcome to our Community and thanks for your first post - we have recently been made aware of the new online process and we can't see as to why this would not work as long as we are provided with the correct access code. If there are any issues with viewing it, we can accept a scanned and emailed copy instead.
Once we have seen the POA, we can then make the necessary changes for you.
I'll pop you a Private Message so we can take some details from you and see how we can assist you. Please look out for the purple envelope in the top right of the page and pop me a reply when you can.