Please do not use titles with only "Help" in them. Most users here need help. Try to give a short description of your problem in the topic title.
For example "some mails don't get send".
If you need FTP login, then you are not a host or a reseller but a customer. This forum is for customers of Directadmin, not customers of hosting company's using Directadmin.
You best contact your host for the correct settings.