Where's my Refund accurate? need help!?

Ok, so, being hopeless at paperwork, i have someone else do my taxes. Being on unemployment, i wasn't expecting to get that much back to be honest. Well, the woman who did my taxes was different than the lady who did them last year. She neglected to tell me she needed my adjustable gross income from last year to file them this year. That set things back about week. no biggie right? I was anxious to see when i got my refund, so a friend recommended Wheres my Refund. i typed in my info, and i'm getting nothing! According to my brother and sis in law, the lady filed them Two weeks ago! how reliable is wheres my refund?