How to disable the “Upgrade or Downgrade” button in “My account” of WooCommerce Subscriptions

I have found/made the code that works. Maybe it helps somebody else.

/**
* Remove the "Upgrade or Downgrade" button from the My Subscription table if user role is "subscriber_plus".
*/
add_filter('woocommerce_subscriptions_switch_link', 'remove_switch_button', 10, 4);
function remove_switch_button($switch_link, $item_id, $item, $subscription) {
$user = wp_get_current_user();
if ( in_array( 'subscriber_plus', (array) $user->roles ) ) {
    return '';
}
return $switch_link;