Hi,

My situation is a bit similar
I was just going to reinstall the addon on my new PC since the older on it no longer works.
But I'm unable to access my old mailbox to receive the activation key.
The mailbox was associated with an older mobile operator and that's why I can't access to it.

Can you make the change, it's not normal to not be able to simply change an email address by yourself.
Does this mean I can no longer use the addon I bought?

kind regards