Hello,
https://igpmanager.com/account/helpdesk/faq/i/How+do+I+delete+or+reset+my+account%3F
Please read this FAQ post for instructions on how to delete accounts in iGP Manager. Remember that deleting an account is permanent and cannot be reversed.
If you still want to delee your account, this is the link to the iGP Manager helpdesk -
https://igpmanager.com/helpdesk.php