SM Entertainment has posted guidelines on bans after Red Velvet suffered sexual harassment on the 'Dear U.Bubble' service.

'Dear U. bubble' is a subscription service on the application 'LYSN' that allows fans to directly contact their favorite SM Entertainment artists and receive exclusive content, and some of the fan conversations with Red Velvet have raised eyebrows online. The leaked conversations reveal the girl group members have been receiving inappropriate messages like "Are you going to upload sexy pictures," while another user told a Red Velvet member to take their clothes off after she expressed the weather was too hot. 

Some fans then voiced their concern, stating, "The problem is that they're sending sexual harassing or inflammatory messages, and they're leaking them as if they're showing off," and "I don't know why they're paying for the service, but I wish they were all sued."

On June 22, SM Entertainment posted a notice on 'LYSN' under the title "Guidelines for prohibited acts related to the use of the Bubble service," which stated that any user who sends 'Bubble' messages including obscene signs, text, and phrases will be banned. The label further stated that users who send messages including the mentioned content that cause fear or anxiety will be punished according to the law.