You will continue to struggle, I'm afraid to say. If the account hasn't been used for 150 days VM will have deleted it completely by now. To keep an address alive since 2104 it has to be accessed every 90 days by web mail or client e-mail. If it isn't it will be suspended by VM and closed after a further 60 days. If it is suspended it can be revived on request.
Superuser 2017/18 Use Kudos to say thanks Mark answer as "helpful" only when the problem is solved Please don't send me private messages unless I ask you to. I do not work for VM. The advice I give is based on my best understanding of VM policy and practice. You rely on it at your own risk.