My income for 2020 was $1991, i used 2019 income again bc turbotax told me to, my agi became $10,413. My refund is $6266 fed, $591 state and was accepted. Is this right?

The irs put a hold due to my eitc. They said double check any errors. Ive never used income twice so im not sure if i did this right, i just filed using the prompts of turbo tax. Did i do this right? It asked if i wanted to use 2019 income again to get a bigger refund since i only made $1,991 in 2020. So then it asked for my w2 info for the jobs i worked in 2019 and i added these w2's to the 2020 return. Both federal and state were accepted. But i got a letter in the mail saying irs is going to double check and can take up to 60 days.