I used to file my tax return with Best Tax Filer in past years, but coming to this year they showed less Returns than expected, so I filed my tax returns with another company with more Refund, Best Tax Team advised me multiple times not to report those losses, but I filed with others.
Now I got a notice from IRS saying I claimed Losses in 1040 TAX RETURN LINE 8, (Indian House expenses as losses)which we were not supposed to report. The department asked back to pay an extra refund with interest and penalty. So I tried contacting the company to resolve my notice but no response from their end. Then I contacted Best Tax filer again and they helped me with Notice and paying back with interest and penalties.
So here I sincerely suggest you not get attracted to more returns easily or else you will face a situation like mine where you need to pay back more.