I suspect that nobody in your issue does not intervene, I'm from 3 months to please and write messages that I would like to recover your old account, the Honourable support even lift a finger to help you, just write what they have. So wasted a chance to have someone graciously you changed your user name. See yourself my topics:
No. 1 - https://forums.opera.com/topic/8174/question-help-to-recovery-my-account
No. 2 - http://forums.opera.com/topic/8975/request-to-change-the-data-in-my-account
Apparently this forum serves as a support, and even then it does not look like support.