Renee: That is such a mean spirited thing for your mum to do! I understand why you are mad and sad. That is a natural reaction to being treated this way.
However, remember that she is enslaved to a cult. Pray for strength to live a life of supernatural love and forgiveness, remembering that but for the grace of God, you too would see life through WT eyes. I am just concerned that if you cut off all contact with her, you may miss an opportunity to help her leave the cult, or plant some seeds of doubt when she is having questions...