My parents didn’t claim me in 2020. And I did check the box to indicate someone can claim me. I have a blank on line 30.

I put someone can claim me as dependent, and that was a mistake because no one claimed me. And on line 30 I didn’t put anything.

I have the same problem where I already filed, and didn’t know about recovery rebate credit. And then later found out that my parent didn’t claim me as dependen...