Wow I am truly sorry you are going through this with your son. He sounds like an amazing man who suffers from a terrible disease. I can only imagine how stressful and upsetting this has been for you and your entire family.
I have never hear of any rehabs for gambling. I am now out of my relationship with my ex partner who has a gambling addiction. I know this is hard to watch as you can most likely see the outcome won’t be good for your son financially or emotionally in relation to the care of his daughter and the possibility of going to jail.
Other than counselling, medication or exclusions from gambling facilities or bans on his phone apps their doesn’t seem to be much around to deal with this addiction. This is just from what I have experienced from when I lived with my partner.
If his ex partner was violent and he has primary custody through court then there may be ways around who looks after her if he did go to jail…I would be encouraging him to seek legal advice about this asap. If his daughter is at risk around her mother then you could contact child services to discuss your concerns.
I am a mother also so I can only imagine if this was my son I would be wanting to help him as much as possible. The thing I have learnt myself about this addiction is that if you don’t allow natural consequences then it often allows the cycle to continue. I learnt this lesson the hard way with bailing my partner out financially when if I had been brave enough and understood addiction enough I would have chosen a different approach. Doesn’t mean that you can’t support and love him but you also can’t rescue him from his choices…
Seeking support for yourself is vitally important. In order to support him you must look after yourself. Seek some counselling from someone experienced in addiction so you can off load your worries in a safe place. There are lots of podcasts about addiction and I often found these helpful when I couldn’t sleep at night and was up worrying about how my life had turned out like this. It can be hard to get your head around and you are most likely in shock and grief about what has happened behind your back.
Take care and reach out anytime.