The form fields borders are not dispalying because of the CSS code border-width: 0px used on your site in the following custom CSS code snippet. To resolve the issue please remove this CSS property from below CSS code.

#contact-form-469453acb8dcdfc36366173424965d9f.contact-form input, #contact-form-469453acb8dcdfc36366173424965d9f.contact-form textarea {
    text-align: left;
    border-radius: 25px;
    padding: 29px 30px;
    border-width: 0px;
}

Regarding displaying recaptcha could you please tell me whether it displays when you do not use RTL support?