Looking for help with HikaSerial for Gift Certificates

Yes,
BTW, when I tried to make a purchase using the serial number as a coupon code, the value for the coupon was $0

I don't understand. I purchased a gift certificate for $1. Then I tried to apply that certificate to a new purchase of a product costing $6 by entering the serial code in the coupon code text field. It accepted the code but on the check out the value of the discount was $0 and the cost of the item was not reduced by the coupon.

Also, I still never got the 'gift Certificate" in my email (from the Attach Serial)

Yes, there is a serial number.
I have given up on the 'fill in your own amount' and am now trying to have a few different denominations of gift certificates.I have tested it with one certificate of a defined amount and EXCEPT for still not getting a certificate in the email, it seemed to work. My questions now are:
If I have more than one gift certificate to offer, how many packs do I need?
How many instances of coupon generator?
How many gift cert. templates?
Is there a way to purchase more than one instance of a gift certificate(at one visit) thereby increasing the final amount of the certificate? So if I have a $10 certificate and I make a quantity of 3 can it be a $30 value?
Why doesn't my product Gift Certificate have a quantity box?
Why am I still not getting the "attach serial" gift cert in the email?

I am ready to give up! I found another component compatible with Hikashop called AWOCoupon that has solid documentation and I am about to purchase it. Before I do, I was wondering if you would be willing to log into my site and look over my settings to see if there is something I have done that is causing me not to receive the coupon, and if everything else is set correctly. Of course I would prefer to stick with Hikaserial if I can make it work. If that is asking too much, then I think i will just go for the other product.