Shell Programming and Scripting

I'm new to scripting. I'm trying to write a script to download files from ftp site, the following is the script and the message i get after running the script. no files were downloaded
Thanks advance!

script:
#!/usr/bin/ksh
DAY=`date --date="-1 days" +%y%m%d`
ftp -v -n "ftp.address" << cmd
user "user name" "pass word"
cd /directory
prompt
bin
mget $DAY*
quit
cmd

Message after running the script:

Connected to lnxftp.mer.com.
220 Welcome to the Mer FTP Service.
530 Please login with USER and PASS.
530 Please login with USER and PASS.
KERBEROS_V4 rejected as an authentication type
331 Please specify the password.
230 Login successful.
250 Directory successfully changed.
Interactive mode off.
200 Switching to Binary mode.
221 Goodbye.

try this....

Thanks for your help. It works now.

the following script works yesterday, but today does not work any more, what's wrong with it. after run it, it give me the same message as i posted before. please advise. thanks

#!/usr/bin/ksh
DAY=`date --date="-1 days" +%y%m%d`
ftp -v -n "fftp.address" << cmd
quote user username
quote pass password
cd /directory
prompt
bin
mget $DAY*
quit
cmd

check the user name and password once again.. it might not be working.. try to login from command prompt..

Thanks vidyadhar85, I can manually log on the ftp with the same user and pass. still don't know why it worked only yesterday

Thanks