Dopbnk — I have missed call to know my account balance, I have received msg that my mobile not linked with account, while I got 2 msg.

Address:

Post office HO/ city office Aligarh,U.P

I have saving account and scss account in Aligarh post office.
Neither I have informed balance account nor interest information.
Yesterday I did missed call to know accounts balance and interest amount.I got msg from AD-IPBMSG that my mobile is invalid, while previous my got msg from VD- DOPBNK for credit and debut.