Received less than approved by irs

I was supposed to get back $7114 I got back tpg $4885. What’s going on with that picture? I need an answer because that’s thousands of dollars missing. Please write back to me as soon as 24-48 hours I am sick of dealing with robots. I’ve been using turbo tax for some time and I know the irs does not give anybody any help but that’s why I trusted TURBO TAX. Thank you.