edd_payment_receipt_before.php

<?php

function drw_purchase_confirmation_text( $payment, $edd_receipt_args ) {
	
	$payment = new EDD_Payment($payment->ID);
	$downloads = $payment->downloads;
	$gateway = $payment->gateway; //stripe //check
    	$gateway_text = ( 'stripe' == $gateway ) ? __('Credit Card', 'drw') : __('Check', 'drw');
    
   	printf('<div class="message">%s %s</div>', __('You have paid by'), $gateway_text);  
  
 }
 
 add_action('edd_payment_receipt_before', 'drw_purchase_confirmation_text', 10, 2);