Change of Password

I tried to log in to a site.
Could not because I have forgotten the password.
Asked for help to change password.
Received help and changed password.
After this I tried to log in and the site asked for my ‘Old’ password.
Now what do I do?
I would be ever grateful for advice on this problem.
I shall appreciate it if you would email me the answer to benza18@hotmail.com with the word ANSWER in the subject line.
Thank you,
benzaloy