See https://stackoverflow.com/a/56731467/9217760 for details.

account-funds.php

<?php // File: wp-content/themes/your-theme/woocommerce/myaccount/account-funds.php
/**
 * My Account > Account Funds page
 *
 * @version 2.0.12
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly
}

wc_print_notices();

?>
<div class="woocommerce-MyAccount-account-funds">
	<p>
		<?php printf( __( 'You currently have <strong>%s</strong> worth of funds in your account.', 'woocommerce-account-funds' ), $funds ); ?>
	</p>

	<?php
	// If the current user is **not** a "customer", show the topup form.
	if ( ! empty( $topup ) && ! current_user_can( 'customer' ) ) {
		echo $topup;
	}
	?>
	<?php echo $products; ?>
	<?php echo $recent_deposits; ?>
</div>