Noted That:

• To install correctly this bns-support.zip .
• Fisrt Download the bns-support.zip to your computer
• Extract/Open bns-support.zip to Your Computer.
• Then, Find readme.txt file inside bns-support.zip and Open readme.txt .
• Now, Read the Requirements of this plugin. Which Wordpress Version and PHP Version are required to run this Plugin in Your Wordpress Site.
• Then, Follow the Tips Below.

Start the Tips:

1. First Download " bns-support.zip " Plugin to your Local Computer. (Click Download)

2. Then, Login to your " yourdomain.com/wp-admin " Dashboard.

3. Then, Click on " Plugins " + " Add New " from left sidemenu of Dashboard.

4. Now, Click on "Upload Plugin" button.

5. Now, Browse " bns-support.zip "  Downloaded plugin from your computer, Where you downloaded bns-support.zip According to Step – 1 Above then, click on " Install Now"

6. Now, Click on " Active Plugin"

7. Then, See left sidemenu. " BNS Support " folder is added on left sidemenu. Now, Click on " BNS Support " folder.

   Noted that: If you do not see " BNS Support " folder on left sidemenu then, see at left sidemenu " Settings " or " Tools ".

8. Now you configure yourself oR Watch video tutorial below about  BNS Support Configurtions and Settings or How to work " BNS Support " in your WordPress site.

After Activated Plugin According to Step-6 then,

1. Go to " Plugins " + " Installed Plugin " from Wordpress Admin Panel Leftside Menu.
2. or Direct go to: https://yourdomain/wp-admin/plugins.php
3. Then, Find " BNS Support " Activated Plugin from Plugin List.
4. Then, Click on " Settings " from Plugin that is BNS Support
5. Now, Edit/Add/Config the setting and Click on " Save Changes " button,

This section describes how to install the plugin and get it working.

1. Upload bns-support.php to the ../wp-content/plugins/ directory.
2. Activate through the ‘Plugins’ menu.
3. Place the BNS Support widget appropriately in the Appearance | Widgets section of the dashboard.

— or –

1. Go to ‘Plugins’ menu under your Dashboard
2. Click on the ‘Add New’ link
3. Search for bns-support
4. Install.
5. Activate through the ‘Plugins’ menu.
6. Place the BNS Support widget appropriately in the Appearance | Widgets section of the dashboard.

Reading this article for further assistance: http://wpfirstaid.com/2009/12/plugin-installation/