I havent gotten any of the 3 stim checks. Irs tracker always says payment status not available. I already filed taxes. Last 3 years were with turbotax. What do i do?

I make less than the cutoff. More specifically my brother got the stimulus checks and we have the same job. Only he makes more money because he is a higher rank. All of the guys who i work with have gotten it also and we all make the same. But i havent.