Metaspy, did this meeting take place at your home? If so, remember that you don't have to admit anyone into your home if you don't want to. Tell your mother that you do not wish to meet with the elders (you don't owe her an explanation for why, even if she asks for one), and that if she brings the elders to your home you will not allow them in.
If you're accustomed to accepting the authority of the elders, it can be hard to let go of that. But the fact is, they have no authority over you at all. You don't have to meet with them or talk to them or let them into your home.
Stay strong.