Did Not Receive $10 Costco Credit on State Tax Filing

I have the desktop version which I bought from Costco in January 2025.  Today, I was about to file my state tax return.  I was due a $10 credit and my payment due was to be $15 (plus tax, of course).  I have a screen shot.  However, after I had entered my credit card info and was about to press "submit", I saw that I had not received the credit at all, and my charge was $25 plus state tax.  This should not have happened.  How can this be fixed?