Php Bootstrap contact form not working, no email/data posted - php

Question

I have a form in Bootstrap that's inside a modal. When I click the "Submit"
there is seems nothing happen,
I have checked the code for the typo and other errors and it seems nothing wrong with my php code but again every time I fill the form and hit the submit button the page is reloaded but email/data not posted
here is the complete php code :
<?php
if(isset($_POST['Submit'])){
$to = 'Support#example.com'; // this is your Email address
$from = $_POST['faq-contact-email'];// this is the sender's Email address
$first_name = $_POST['faq-contact-firstname'];
$last_name = $_POST['faq-contact-lastname'];
$division = $_POST['faq-contact-subject'];
$subject = $_POST['contact-subject'];
$themessage = $_POST['faq-contact-msg'];
$message = 'Support mail from : '.$first_name.' '.$last_name.'<br/>
To : '.$division.' Division<br/>
<hr/>
'.$themessage.'';
$headers = 'MIME-Version: 1.0' . "\r\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
$headers .= "From: ".$from."\r\n"."X-Mailer: php";
mail($to,$subject,$message,$headers);
echo "Support message Sent. Thank you " . $first_name . ", we will contact you shortly.";
}
?>
<div class="content">
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">
<a class="accordion-toggle" data-toggle="collapse" data-parent="#faq4" href="#faq4_q1"><i class="fa fa-envelope-o"></i> Contact Support</a>
</h3>
</div>
<div id="faq4_q1" class="panel-collapse collapse in">
<div class="panel-body">
<form method="post" action="" class="form-horizontal push-10-t" >
<div class="form-group">
<div class="col-xs-6 col-sm-4">
<div class="form-material form-material-primary">
<input class="form-control" type="text" id="faq-contact-firstname" name="faq-contact-firstname" placeholder="Enter your firstname..">
<label for="faq-contact-firstname">Firstname</label>
</div>
</div>
<div class="col-xs-6 col-sm-4">
<div class="form-material form-material-primary">
<input class="form-control" type="text" id="faq-contact-lastname" name="faq-contact-lastname" placeholder="Enter your lastname..">
<label for="faq-contact-lastname">Lastname</label>
</div>
</div>
</div>
<div class="form-group">
<div class="col-sm-8">
<div class="form-material form-material-primary input-group">
<input class="form-control" type="email" id="faq-contact-email" name="faq-contact-email" placeholder="Enter your email..">
<label for="faq-contact-email">Email</label>
<span class="input-group-addon"><i class="fa fa-envelope-o"></i></span>
</div>
</div>
</div>
<div class="form-group">
<div class="col-sm-4">
<div class="form-material form-material-primary">
<select class="form-control" id="faq-contact-subject" name="faq-contact-subject" size="1">
<option value="1">Tech Support</option>
<option value="2">Billing</option>
</select>
<label for="faq-contact-subject">Where?</label>
</div>
</div>
</div>
<div class="col-xs-6 col-sm-4">
<div class="form-material form-material-primary">
<input class="form-control" type="text" id="contact-subject" name="contact-subject" placeholder="Enter your subject..">
<label for="contact-subject">Subject</label>
</div>
</div>
<div class="form-group">
<div class="col-xs-12">
<div class="form-material form-material-primary">
<textarea class="form-control" id="faq-contact-msg" name="faq-contact-msg" rows="7" placeholder="Enter your message.."></textarea>
<label for="faq-contact-msg">Message</label>
</div>
<div class="help-block text-right">Feel free to use common tags: <blockquote>, <strong>, <em></div>
</div>
</div>
<div class="form-group remove-margin-b">
<div class="col-xs-12">
<button class="btn btn-sm btn-primary" name="submit" type="submit"><i class="fa fa-send push-5-r"></i> Send Message</button>
</div>
</div>
</form>
</div>
</div>
</div>
</div>
Can anyone please help me what's wrong with my code
If someone could help that would be greatly appreciated!
Thanks

Answer 1

Ok, I make an answer of my comment.
if(isset($_POST['Submit']))
Change Submit to submit. You can also use
if(isset($_POST))
instead

Answer 2

Check your first line
if(isset($_POST['Submit']))
You have written "Submit" (capital S) ,where the name of your button is "submit" . so make it
if(isset($_POST['submit']))