Is it normal for a complaint to be instantly closed as resolved?

I am unhappy with the way my renewal was handled, and raised a complaint on Thursday.  I received an acknowledgement via email and the status of this complaint is "pending".

On Friday I got a "thanks for making those changes!" email which directly contradicted the wishes I had put in my first complaint (I had asked for certain add-ons to be removed, which wasn't an option online and the Live Chat agent was incapable of helping; the email confirms removal of the add-ons I wanted to keep and confirmation the ones I wanted rid of will be retained).  Not having the option to respond to the complaint, I raised a second one.

I did not get an acknowledgement to for the second complaint, but I saw on my Complaints History page that it was marked as "resolved" within an hour of my raising it.  The email addresses on both complaints are the same, and I don't have a spam filter set up on my email system.

How can I find out why this case was immediately closed?  Thank you.