try logging in under your old name instead of the email address and then do the forgot pin bit. I think that might work.

I put Nana_d into the search box at the top and all your previous blogs etc are still on the site, so you could look at them that way.
you could do a message via the contact us tab at the bottom of the page and see if they can help you.

Hello.I remember you as Nana d,too and typed that in on Google..It took me to an old blog way back in 2011,called 'Roses grow on you'? .I had no problem finding your old name..Just to mention,on your new user name on your profile reads nanad's ? maybe that's why you can't see your old account,as an 's' has been added ? anyway,nice to see you again nana d.:o)