is there a way to disable the discounts for a specific user? I'm using a wholesale mod that sets a wholesale attribute 0, 1, 2. Anybody with 1 or 2 should not receive additional discounts.

$customer_check = $db->Execute("select * from " . TABLE_CUSTOMERS . " where customers_id = '$customers_id'");
if ($customer_check->fields['customers_whole'] != "0")