Hikaserial - problem

-- HikaShop version -- : 2.6.0
-- HikaSerial version -- : 1.10.0
-- Joomla version -- : 3.4.5
-- PHP version -- : 5.5.26
-- Browser(s) name and version -- : all

Hi I'm trying to set Hikaserial. I added to a product package and I created a test payment and delivery method. I added 4 serial numbers and start testing. The result is the following if you order one product no problem but if you order 2 or more get only one serial number. How do I fix this problem?

It is working with the association but wonder what the exact problem. I think that without associate not updated quantity of product. I will give you access to look. I also want to ask how I can attach directly the codes in the email.

I sent you a private message to login information.

Now working normally. Thank you.