There is no way to control incoming texts, especially when one is involuntarily added to a group message. These messages regardless of whether you want to be involved subtract from your overall monthly allowance. Furthermore, the worst occurs when one travels outside of the USA. There is no way to inform everyone, nor should I have to. We are being wrongfully charge for something completely out of our control. The majority of providers outside of the USA understand this and do not charge their customers for incoming texts. They understand that those customers have no control over who texts them and when. Hence, they should not be held responsible for the actions of others.