That doesn't mean you phone was hacked as it appears that somehow you have signed up to this service. Usually replying with the word STOP will do just that.
Go to the settings on your phone and make sure your number is showing, if it isn't then then you should be able to add it back.
__________________________________________________________________________________________
If someone has helped you then please click on the LIKES button in their post.
If you need help please provide as much information as you can
