Deductions & credits

I have a similar question along these lines.

Turbo Tax is saying I qualify for $5,600 based on my spouse and I's AGI. 

We received $4,200 for the 3rd stimulus. We have the Letter 6475 from the IRS showing $2,100 for my wife and I assume one for me for the same amount I seem to have misplaced my letter). 

So was I owed an additional $1,400? My refund just jumped up dramatically and I'm not sure that is correct. I thought we got all the stimulus we were owed?