Block unwanted text messages on galaxy S4

Solution
As far as I know most standard messaging apps don't have the option. You can try installing an app that will allow for blocking specific phone numbers from calling, texting, etc.

Now if you are getting texts that are from companies or spam type you should contact your carrier/service provider and tell them. Companies aren't supposed to do that. Also, if they are threatening texts or other harassment texts you should contact your carrier/service provider and the police.
As far as I know most standard messaging apps don't have the option. You can try installing an app that will allow for blocking specific phone numbers from calling, texting, etc.

Now if you are getting texts that are from companies or spam type you should contact your carrier/service provider and tell them. Companies aren't supposed to do that. Also, if they are threatening texts or other harassment texts you should contact your carrier/service provider and the police.
 
Solution