common/mail/thanks_1.php

<?php
    
    /**
     * @var View   $this
     * @var string $email
     * @var string $phone
     */
    
    use yii\web\View;
?>
<div style="width: 600px;font-size: 18px;">
<p align="center">
  Thank you for registering!
</p>
<p>
  A letter of confirmation of participation in the
    "Ninth International Energy Forum for Sustainable Development" will be sent to your e-mail
    address as soon as possible.
</p>
<p>
    In case of any questions regarding to the Forum, feel free to contact with:
</p>
<p>
    <span style="text-decoration: underline">
        <strong>
Ministry of Energy and Coal Industry of Ukraine
        </strong>
    </span><br />
    Email: forum@mev.gov.ua <br>
    Phone: +380 44 206 38 57 (09:00-17:00 local time)
</p>
<p>
    <span style="text-decoration: underline">
        <strong>
Organization issues:
        </strong>
    </span><br />
    Name: Ganna Skydanchuk <br>
    Tel: <?= $phone ?>  (10:00-18:00 local time) <br>
    Email: <?= $email ?>
</p>
</div>