Ever since Google took over blogspot things have been chaotic. They try to force everyone into having one account and thus passwords and things get constantly mixed. If you sign in for one "google service" somewhere you are suddenly in that mode permanently and have trouble accessing other accounts.
We have repeatedly been told our password for this account is invalid. We go through recovery processes only to have it send us reset links to a blog that doesn't exist. After repeated tries it allows us to reset the password yet again. We write down the password and yet the next time we try to enter we are told it is invalid.
Sorry, but Google really sucks.