Younger Siblings Dad

I haven't seen or spoken to my youngest brother and sister since January. My mother hasn't either. The last we've heard, my youngest sister (10) threatened to kill herself because of the things her dad and step mom were telling her about us and our family. Things like, me and my sister weren't her sisters. (We're half sisters but according to him that makes us not related even though they have a half brother from him and he's their brother) My mom is faking being sick (even though she's been hospitalized several times for various complications of her illness) Our step dad isn't her dad (he's not biologically but her birth father only came around when she was 6 so she knew him as daddy) Our older brother, who is step, was killed in an accident a few years ago was her favorite, and he's telling her he wasn't her brother and she shouldn't be sad about him dying.

So the situation is, my mother lives in Virginia and so did they and their father. She had custody until she got sick and let him have them for school because she spent so much time in the hospital. They had a custody agreement in the state of Virginia. She didn't have to pay child support until his back pay was settled. Once it was, she paid it as she was supposed to. Well, he moved them back to West Virginia. She tried calling for weeks and the kids were always busy or couldn't talk, were grounded, or some excuse. They would schedule visits on weekends when the VA agreement allowed but would leave my mother waiting and not bring the kids or call to cancel the meet. My mom contacted the court about it and was told because they lived in WV now, there was nothing they could do and she needed to contact WV. But WV says she needs to get a lawyer and take them back to court for violating a custody agreement which can result in them not having custody anymore and or jail time. They told her to keep logs of rejected calls and visitation weekends denied. My sister and I tried contacting them by phone and social media but, get hung up on or blocked. My mom called on my brothers 13th birthday and got told not to call again and hung up on. I feel like this should be very illegal.

This all started with my sister going to a mental hospital in January shortly after her first period (at 10 years old). They wouldn't tell my mom what hospital she was in. We found out she was in the hospital when they only brought my brother for a visit one weekend. A couple times after that they would only drop my brother off and he told my mom where my sister was so they stopped bringing him too and had her moved. She called and tried to get info but the hospital was given strict instructions by her father not to give her information. That's when they stopped letting my family have contact.

I'm gonna hear, "I'm sure there's more to the story" But no, there really isn't. We don't know why they're keeping them from us but I'm wondering if it has something to do with things they're doing and don't want us to know about. My brother would tell us they had to stay in their rooms at all times and weren't allowed to play with each other. They weren't allowed to watch TV or play games at all. He couldn't go to friends houses, he was yelled at a lot and told to stay in his room with the door shut. (He has ADHD and his dad took him off his medicine) They don't let the kids see their aunt (his own sister) because she talks to my mom.

When I tried contacting them after I had my son to let my brother and sister know he existed (they didn't even know I was pregnant) they blocked me immediately. That's what I'm most upset about. I only tried letting them know they had a nephew.. I never had issues with my ex step dad and my mom didn't either until he married another woman. Before he married her he wanted nothing to do with the kids, then all of a sudden he gets married, my mom was a terrible mother and didn't deserve them.

...venting over...