10) Can the initiation be taken back?

No, it cannot. But if you knowingly violate the rules, your Ananda Gandha chakra can be locked. This will mean that your healing powers will be severely limited; you can practise self-healing in the case of simple ailments, but your healing will be ineffective on others. If you still persist in healing, be very clear: the karma of your actions will come to you. Of course, the chakra is locked only in the case of repeated violation of healers’ ethics and code of conduct.