Deductions & credits

Just to clarity, my question has nothing to do with the stimulus check amounts.

All I wanted know is:

A- Why did I get check for my tax return if I provided Turbo Tax with my bank account information ?

B- How do I get the benefit of the the EXTRA CHILD CREDITS that all other Americans that have Not filed taxes yet, will get, if I already filled ( I believe you already gave me an answer for this, Not happy with it, but ... )

 

Thanks again