Adobe digital password

i have been all over the adobe site trying to find an answer to no avail

I have kobo books

purchased books online thru my iPhone just to find that I needed adobe digital editions to read same

I can log in via Facebook on the adobe digital thingy

but I have no idea what the password actually is

I know my Facebook password but it don't work with the corresponding email

the only way to change password on the adobe app is if you know the current one and when I click forgot password it gives me a page not found error

omg now what do I do