Add your own HTML instructions to Pay By Check PMPro.

html_instructions_pay_by_check.php

<?php

/**
 * This is an example how to add custom HTML instructions for Pay By Check add-on for Paid Memberships Pro
 * Copy the following code into your PMPro Customizations Plugin - https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 * Visit www.paidmembershipspro.com
 */
 
 function add_custom_checkout_instructions_to_pmpro_check() {
	global $gateway, $pmpro_level;

	if($gateway == "check" && !pmpro_isLevelFree($pmpro_level)) { 
		?>
		<h2>Check Instructions</h2>
		<ul class="my_check_instructions" style="list-style-type: none;">
			<li>Bank: Bank Name</li>
			<li>Account Holder: Company Name</li>
			<li>Account Number: 1234567890</li>
			<li>Branch Code: 12345</li>
			<li>Reference: use your email address as reference</li>
		</ul>
		<?php
	}
}
add_action( 'pmpro_checkout_after_payment_information_fields', 'add_custom_checkout_instructions_to_pmpro_check' );