I submitted my return through turbotax on February 12th and it was accepted. Whenever I check the status of my return through the IRS, it still says it's being processed. I later realized that I entered the incorrect amount when it asked how much money I received for the first stimulus check. I entered $600, but actually received the full $1,200. I'm guessing this might be affecting the delay in receiving my refund. Do I need to amend my return to fix that error?