I'm so sorry, in exactly the same position here. My mum was so pissed when she found out I'd been vaccinated here (I hadn't told her I was getting it). My advice would be to try and get it through other means if you can (other relatives perhaps?). I know you can't argue with them, they think it's going to hurt us and they're so caught up in all their conspiracy nonsense you can't get through. Good luck with it all, it's tough but it's coming from a place of love, however horrifying it is to witness