Advice

safehaven

Hello just some advice please if anyone can
help ,I'm no contact with mother,my disabled sister lives with her ,my mother got all the control ,she will not allow me to see my sister ,no reason ,no risk nothing ,its because I no contact her , contacted ss for some concerns ,they checked no concerns ,there is ? Can't help cause its family ,my mother speaks for my sister ,its absolutely heartbreaking how a mother can do this to her children ,well we are adults,,,,there's nothing I can do she's in 80s ,health not good ss know this ,mother told them family help sis they don't, has anyone ever heard ,come across such heart ache.?