Contact Form not working

Hi again...

Spent most of the evening trying to sort this with my web hosting providers...but they're not really helping.

The contact form can be seen here: http://www.cosurvivor.in/newsite/pages/contact.html

Going through the documentation, this is the line of code i found for SMTP

$mail->IsSMTP();
$mail->Host = "mail.yourdomain.com";
$mail->SMTPDebug = 0;
$mail->SMTPAuth = true;
$mail->Port = 26;
$mail->Username = "yourname@yourdomain.com";
$mail->Password = "yourpassword";

from the web service providers, the only details i have received are a text email with the following info:

SMTP Secure: No
SMTP Host: smtp8.net4india.com
SMTP Port: 25 and 587
SMTP Username: Email ID
SMTP Password: password of Email ID
SMTP Auth: smtpauth.net4india.com

Not all of the fields match and no specifications of any syntax - parentheses, single quotes, double quotes, no quotes etc.
They are not being helpful beyond this, keep telling me i need to get in touch with a coding person...and i have tried many different combinations....the form is not working.

Could you please let me know the correct syntax that i need to input here to get this to work...would be a big help.
Thanks

Attaching a screenshot of the error im getting on the contact page....please help

It's working now.
The hosting providers made some updates on their back end, the contact form now works with the PHP method, no SMTP details required.
Thanks.