CrestaProject

<a href="https://crestaproject.com/cresta-help-chat-demo-page/" rel="nofollow ugc">Plugin Demo</a> | <a href="https://crestaproject.com/downloads/cresta-help-chat/" rel="nofollow ugc">Plugin Homepage</a>
With Cresta Help Chat you can allow your users or customers to contact you via WhatsApp simply by clicking on a button. Users may contact you directly in private messages on your WhatsApp number and continue the conversation on WhatsApp web or WhatsApp application (from mobile). 
You can use the floating button which is positioned at the bottom right of the site or a button inside post or pages using the [cresta-help-chat text=”Need Help?” icon=”yes” position=”top”] shortcode. 
Cresta WhatsApp Chat is compatible with WooCommerce and WPML.
Some features
<ul>
<li>Add the button to open WhatsApp Chat at bottom right of your site</li>
<li>Use the shortcode [cresta-help-chat] to add the WhatsApp button in your posts, pages or custom post type</li>
<li>Choose which pages to show the WhatsApp Chat button</li>
<li>Mobile version: click the button and automatically open the WhatsApp App (if installed)</li>
<li>and more…</li>
</ul>
PRO version features
<ul>
<li>Change position of the box button</li>
<li>Change colors of the box button</li>
<li>Add tooltip on the box button</li>
<li>Change box size</li>
<li>WhatsApp widget</li>
<li>Different Animations</li>
<li>and much more…</li>
</ul>

Cresta Help Chat

Allow your users and customers to contact you via WhatsApp with a single click.

helpdesksupporttickets

Helpdesk system to allow your Customers to create Support Tickets from your website.
<ul>
<li>Built only for WordPress websites.</li>
<li>No subscriptions, no limitations, no registrations: install and go!</li>
<li>Tickets search, ordering, filtering by Status.</li>
<li>Create Tickets on Customer’s behalf.</li>
<li>Add Messages and receive Customer’s messages.</li>
<li>Email notifications included.</li>
<li>Attach files to Tickets.</li>
<li>Front-end included: let your Customer open Tickets from your website!</li>
<li>Responsive, works on mobile, fast AJAX structure.</li>
<li>Install wizard will configure the plugin in 1 minute.</li>
<li>Exensions coming soon!</li>
</ul>
NEW! 29/04/2017: Added Colors for different Ticket Statuses

Helpdesk Support Tickets Plugin for WordPress

Helpdesk and Support Tickets Plugin built only for WordPress. No subscriptions, responsive, front end content, email notifications included.

Cresta Help Chat vs Helpdesk Support Tickets Plugin for WordPress