Cannot connect to Galaxy s6

Hi i cant connect zus to my galaxy s6 every after follow all information and when i try to connect it showings me it has being used by other device send request to email to confirm. I get the email and i conformed it. Even though its not connecting with

Hi,

Does your family or friends used to connected to your ZUS? If Yes, they need to remove in ZUS App. Then you can connect to ZUS.

If you have any question, Please let me know.