Scam or fraud: Airtel — Airtel sim error 538

Submitted by: Tejanath

Complaint Details:
Default problem regarding errors message
I got a new sim from airtel store after a loss of previous one.It is working properly but the problem is when i’m trying to check my 3g balance on dailing *123*11# or while
using any service like *121# it is showing the message”ERROR_MESSAGE (538).Please try after some time.Why this is happening?Please resolve it fast..My mobile number is- 9515651565