Abstract: In this era everyone is affected by advertisements, overpromising and deception also occur in ads. In this research we estimate the relationship of customer response and deceptive advertising. The main purpose of this research is to examine how many deceptive ads affect customer loyalty behavior and attitude, deceptive ads means false ads, which some of the advertisers do in their ads but never accept it. By doing deception they thought they penetrate the market, this deception nowadays occurring in the mobile phone advertisements.