Refund shown as soon as trying to Amend 2021 E-filed return - Incorrect Original AGI and other fields in 1040-X

I am using a Download version of Home and Business 2021 and there is BUG is creating Amendments.  I had paid the federal taxes due when I had filed for extension of the 2021 return. Subsequently I had e-filed the return.

I have now received a W2C for 2021 from Employer with minor additional income. 
Issues I see are :
1. As soon as I go to Amend the already e-filed and accepted 2021 return I see federal refund amount.  This is a bit less than the tax due amount that I had paid on April 20, 2021 when extension was filed.

2. Also when I update the W2 and check the1040X  line 1 - Original AGI it also has a increase a bit less than the refund amount shown, 

This clearly points to a BUG in the program.  
Also how can I talk to support and show them the issue and get help.

Thanks and Regards,