I am using Samsung s7 edge device when I want to check balance it's show only USSD code running.

[aarshi18]

Hi
I am using Samsung s7 edge device when I want to check balance it's show only USSD code running.

 

[webworkings]

It usually means there is something in your service that isn't working normally, or isn't active. I suggest you contact your carrier/service provider to see what it could be.