html embedded conditional if statements in php

I feel like this should be pretty simple but I'm not getting the results that i want. I have a email signup form that displays across all my websites. If they happen to visit my website with the store code ama_br the email signup disappears. That is fine and that works. My elseif statement is a different form than the one that is displayed across all store views and i want this new form to only appear when it's store code ama_ca. It does not work for me and I don't see anything wrong with my code. Please help. Thank you.

            <?php if (Mage::app()->getStore()->getCode() != "ama_br"):?>
                <ul>
                    <li><?php echo $this->__('Email Sign Up')?></li>
                    <li>
                        <form action="<?php echo $this->getUrl('email_preferences')?>" method="get" id="newsletter-validate-detail">
                            <input name="email" type="text" id="newsletter" placeholder="<?php echo $this->__('Enter Email address')?>" title="<?php echo $this->__('Enter Email address')?>' class="required-entry validate-email">
                            <button class="submit">+</button>
                            <input type="hidden" name="source" value="nt">
                        </form>
                    </li>
                    <li class="footer-promo"><?php echo $this->getChildHtml('footer_promo')?></li>
                </ul>

            <?php elseif (Mage::app()->getStore()->getCode() == "ama_ca"):?>
                <ul>
                    <li><?php echo $this->__('Email Sign Up')?></li>
                    <li>
                <form method="post" action="http://ift.tt/2cXdOpB" accept-charset="UTF-8">
                        <input type="hidden" name="crvs" value="6hZNXcISD79ac2Empmsr2az_B3Qc5osTNmkOdNHleqhPIYmsxEOe6PbgaUo-3WBn_Vbgorrbk4qjekx7w4tljA">
                        <input type="hidden" name="CheckBox.Source.ca_footer" value="on">
                        <input name="email" type="text" id="newsletter" placeholder="Enter Email address" title="Enter Email address' class=" required-entry="">
                        <input type="hidden" id="submit" value="Sign Up">
                        </form>
                    </li>
                    <li class="footer-promo"><?php echo $this->getChildHtml('footer_promo')?></li>
                </ul>
            <?php endif;?>