My refund hasn’t posted so I call the IRS and they said there was an error I didn’t select that I received $600 stim so I have to wait 8 more weeks. Why did TT screw me?

My refund will be $600 less than it originally said and the where’s my refund tool says it’s still processing. Do I have to fix this or are they going to? I’m not even sure what I or turbo tax did wrong