Hello
For coupons created in Admin, customers are not notified. If you select a specific shopper group or customer when creating the coupon, then the coupon will show in their coupon list on the front end:
index.php?option=com_awocoupon&view=coupons
For purchase gift certificates, the email notifications are sent out when the order status has reached the order status setup in admin->awocoupon->configuration->gift certificate products