Hide price display suffix based on user role

.woocommerce-price-suffix {
  display: none;
}
.single-product .product-price-wrap .woocommerce-price-suffix {
  display: block !important;
}

Found this bit of code to hide the suffix, but how do I make it apply to specific user roles?

Alternately, is there a code way to add a suffix to a specific user role?

Also found this bit of code but it isnt working for me.

add_filter('eh_pricing_adjustment_modfiy_price', 'eh_pricing_adjustment_add_price_suffix', 10, 2);

function eh_pricing_adjustment_add_price_suffix($price, $current_user_role) {
	// Change the text 'Excluding Tax' to desired text.
	$your_suffix = 'Excluding Tax';
	if($current_user_role == 'administrator') {
		$price .= ' '.$your_suffix;
	}
	return $price;
}

I changed it slightly for my user and suffix, including the Woo shortcode, to

add_filter('eh_pricing_adjustment_modfiy_price', 'eh_pricing_adjustment_add_price_suffix', 10, 2);

function eh_pricing_adjustment_add_price_suffix($price, $current_user_role) {
	$your_suffix = 'ex VAT ({price_including_tax} inc VAT)';
	if($current_user_role == 'default_wholesaler') {
		$price .= ' '.$your_suffix;
	}
	return $price;
}

Can anyone advise what might be wrong?

I have got a big closer with the following:

function custom_price_suffix( $price, $product ) {
    $your_suffix = 'ex VAT ({price_including_tax} inc VAT)';

    // check current user role
    $user = wp_get_current_user();
    $roles = ( array ) $user->roles;
  
    if ( in_array( 'administrator', $roles ) ) {
        $price .= $your_suffix;
    } elseif ( in_array( 'default_wholesaler', $roles ) ) {
        $price .= $your_suffix;
    }

    // return $price;
    return apply_filters( 'woocommerce_get_price', $price );
}
add_filter( 'woocommerce_get_price_html', 'custom_price_suffix', 100, 2 );

However this is adding the suffix twice. It is also not recognising the Woo shortcode {price_including_tax} and not displaying the price.

Can anyone help? Thanks