Hello man,
I've read your project details and I am sure that I can implement the Api you have provided in the project description to send messages. Will create a form having fields Phone, Name and text... so you can get data from it.
I am a freelancer having experience of more than 3 years in developing high quality websites for my satisfied customers. I know HTML5, CSS3, Bootstrap, JS, Jquery, Wordpress, Joomla, PHP, and Mysql.
I'd be happy to assist you more over freelancer live chat.
Thanks
Regards
Jawad Rizwan