I am unable to access a Trello account because my original email address has changed

I am unable to access a Trello account because my original email address has changed.

When I try and contact Atlassian support to instruct them that I cannot access the account, they say to o go through the support channel to change this they then ask for my URL code for the account that I cannot access: https://support.atlassian.com/contact/#/

I've git lots if info I need in Trello and just because the original email account is now closed, I seem completely unable to get any help with this?

Is there any way to actually sort this?