It could be some app you installed on your phone stole your phone number. I once installed an app made by Chinese developers. It sent out spam messages. I started get weird messages. After uninstall the app, every weird thing stopped.
【在 n***s 的大作中提到】 : It could be some app you installed on your phone stole your phone number. I : once installed an app made by Chinese developers. It sent out spam messages. : I started get weird messages. After uninstall the app, every weird thing : stopped.