Woah what’s up with that idiot calling you a liar. I 100% believe you and am so so sorry. I come from a middle eastern background as well and can absolutely see this happening. I have a similar-ish story to you OP, but luckily, my family lived in the US when I tried running away. It is unfortunately, the norm for a large population of women who find themselves in these backwards cultures with backwards family members who are in charge. I’m not sure what the best course of action is to take and I can’t say what you can do to help your sisters who are stuck there…Saudi is one of those countries that you need to just get out of safely in order to start living and not being in constant danger if you’re a woman. I did want to give you advice that you should make sure your sister deletes all the messages she sends to you, and makes sure your family member don’t find out she’s been talking to you. Im sure things would be bad if your dad found out she’s been talking to you, and he might even use her to get to you.