Dear Sir,

I use the password you provide to upload files to my hosting. But it fail.
The related domain is www.ebizunion.com

We've fixed this issue.

I try it these two days and it still not change, I can not access to my hosting and can not upload files.

It must be working
I've checked : all permitions to access ftp are setup

Please check it now
If it does not work please open trouble ticket and assign there your login information for ftp account

Please look following result and whether it works:

220 Microsoft FTP Service
USER ebizunion.com
331 Password required for ebizunion.com.
PASS (hidden)
530 User ebizunion.com cannot log in.
Cannot login waiting to retry (30s)...
Continue to login attempt 7...
Connecting to (69.56.161.187) -> IP: 69.56.161.187 PORT: 21
Connected to (69.56.161.187) -> Time = 0ms
Socket connected waiting for login sequence.
220 Microsoft FTP Service
USER ebizunion.com
331 Password required for ebizunion.com.
PASS (hidden)
530 User ebizunion.com cannot log in.
Cannot login waiting to retry (30s)...
Continue to login attempt 8...
Connecting to (69.56.161.187) -> IP: 69.56.161.187 PORT: 21
Connected to (69.56.161.187) -> Time = 0ms
Socket connected waiting for login sequence.
220 Microsoft FTP Service
USER ebizunion.com
331 Password required for ebizunion.com.
PASS (hidden)
530 User ebizunion.com cannot log in.
Cannot login waiting to retry (30s)...
Continue to login attempt 9...
Connecting to (69.56.161.187) -> IP: 69.56.161.187 PORT: 21
Connected to (69.56.161.187) -> Time = 10ms
Socket connected waiting for login sequence.
220 Microsoft FTP Service
USER ebizunion.com
331 Password required for ebizunion.com.
PASS (hidden)
530 User ebizunion.com cannot log in.
Cannot login waiting to retry (30s)...
Continue to login attempt 10...
Connecting to (69.56.161.187) -> IP: 69.56.161.187 PORT: 21
Connected to (69.56.161.187) -> Time = 0ms
Socket connected waiting for login sequence.

I've created test ftp account support.test you can access it here
HST15 > ebizunion.com > FTP Accounts > FTP Account
and it is working, I can access your site via ftp

Can you open trouble ticket and assign there your login information for ftp account?
We need your pass

btw do you use passive mode ?