9560345888 my phone is sending messages without my permission

[sai97]

I had reset my  phone  and after that my phone  is sending  9560345888 this no without my permission 

Kindly help me what to do and stop this issue 

[Samsung_Support3]

Dear Samsung Member,

Greetings from Samsung Customer Support!

Please register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support