House arrest

Hello, please help me with this i am a 24 years guy and girl is 23 years we love each other and wanted to get married as the girls family were hurrying up for her marriage we decide to reveal our love in our homes. girl has informed her parents that she loves me and wants to get married to me. her family opposed and house arrested her,she tired a lot to convrnce therir family but they are not ready, i have tired to make a call to her dad he refussed to talk her borther calld me and threating me that i will kill you and will spoil your carrier. however girl tried a lot and made a call to me and said to come with police or media some body so that we can we can talk to each other and clarify about this. I went with my brothers and to her home to convence their family for our marrige bt they refused to talk about this , i tried to convence them atleast give us 2 min of time to talk each other they denied girl wants me to come again to her and try to speak to her so that we can take decision i do not have any other choice to contact her where can i get the support. please help me. Thanking you.