Hi PlatinumGalaxy,
Your ZARP VIP badge is not appearing on this account because you purchased the upgrade on a different ZARP account. Your Steam profile is currently also linked to this ZARP account (zarpgaming.com/index.php/forum/profile/16483) which has the upgrade. If you would like to transfer your upgrades to this account, simply log into your other account and make a post requesting the transfer.