I Idk

i really need someone to hear me out i have a problem . so for the past month my daughter who is 6 refuses to come back home she spends her time at her grandma;s my mom . i have tried to pick her up numerous times and my mom acts stupid like my daughter is her kid and won't let her go or something . my child starts crying and saying she doesn't want to go home with me and now she is calling my mom mommy and my brother daddy they are all crazy . i just want to get my child out of there . idk what to do . they have teamed up on me not letting me take my own kid home . i called my daughter today and she was really mean on the phone to me it's breaking my heart iv'e been alone for a month and it's depressed me . i just want go get her i know she being coached to say these things to me . i feel so alone isk why they are doing this to me . i just need some advice