Which law is allegedly violated by SMS bombing?

According to Article 1033(1) of the Civil Code, unless otherwise provided by law or with the express consent of the rights holder, no organization or individual may use telephone, text messages, or instant messaging tools to Intruding on the privacy and tranquility of others by means of messages, emails, flyers, etc.

According to paragraph 1 of Article 18 of the "Regulations on the Administration of Communications Short Message Services", short message service providers and short message content providers shall not send commercial short messages to users without their consent or request. information.