Hi,
With HikaShop business, you can unpublish the emails that you don't want to send to the user or administrator.
In the HikaShop backend, in the menu "System > Emails" you can access to the list of the email, override them and publish/unpublish them.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.