This study seeks to investigate customer’s perception of GSM interruptive advertisement in Nigeria. The study adopted cognitive dissonance theory of mass communication. The research methodology used in this research is the survey research of which questionnaires were administered to 120 respondents in Abraka. The research shown that the perception of GSM customers towards interruptive GSM SMS adverts is disturbing; due to the unending SMS adverts. The results of the research revealed that the perception of GSM users is that of annoyance, irritating invasion of privacy. The research recommends that GSM service provider should understand the perception and attitude of the customers before sending interruptive SMS advert. Nigeria communication Commission (NCC) should regulate the number of SMS advert which each service provider can send in a day. Service providers should send important SMS advert that is most needed by the customers. The SMS advert should be simple and easy.