Change in domain name

What happens when the domain name for the login page changes and I don't remember the exact old domain? How will I retrieve correct password?

Many sites have changed the login page from something like www.citicard.com to www.citi.com. Most of the time I won't remember the old domain name used to create the password.

I "think" if you go to the "mobile" app at http://supergenpass.com/mobile/ - it will actually ask you to enter the domain name there ;)

So....just enter "olddomain-name" in that field, input your master password up top, and that "should" do it....someone correct me if I'm wrong ;)