Prepaid call barring
Hi, I am now in Malaysia and I can't make or receive any calls and SMS, and even top up.
I found that the call barring is on and #330*1234# is not working, showing Call barring. Connection error or MMI is not valid. I don't know is it the cause to the problem.
I need to make sure it is active once I reach in Singapore. I tried to register Starhub prepaid app but I can't even receive OTP. Please help me solve the problem. Thanks.