A small matter: Won't let me update my email address

There are two accounts with the same account/user name of rinselberg - both accounts were created from the same computer and IPC port address. One account is userid 186967 and the second (unwanted) account is userid 224639

When I go the "Your account" option from the BOINC manager window, or when I go to the Einstein message boards it gives me the 186967 account.

I wish that someone could delete the 224639 account. I cannot find a way to get into it and modify it. It apparently has the same email address that I would like to insert as an update to the 186967 account. When I try to update the email address in the 186967 account, it is not permitted - it says "There's already an account with that email address".

For the present it is a small matter, but I wish it could be fixed. Odds are that I will be running Einstein@home for the foreseeable future, and I would like to get the automatic email notifications from the message boards, which is the reason that I want to correct the outdated email address on account 186967