Ok, but "old seed" is not case sensitive? I have now claimed all iotas with "old seed" in lowercase letters.
I don't know if it's case sensitive or not, maybe reclaim with upper case to the same new seed? BTW, I hope you didn't generate the seed with the service mentioned in
https://thatoddmailbox.github.io/2017/01/28/iotaseed.html...