It is indeed very annoying when people keep calling and not taking no for an answer. In this situation, the best course of action is to ban them all and disable calls. This will prevent them from calling again and allow you to have some peace of mind. Additionally, you may want to consider blocking their numbers so that they can't call you again. It is also important to document any calls you receive from them and report them to the authorities if necessary. Taking these steps will help ensure that you are not harassed by these people in the future.