India Post — non transfer of matured rd amount to sb account

Address: Jammu, Jammu and Kashmir

Po janipur. Jammu is delaying transfer of rd.
Mature amount to my sb.
Account on unexplicable reasons.
Rd ac no.24203293
Sb ac no.[protected]
Dom.8thaug 2017.
My above rd of rs.600 pm matured on 8th aug 2017.
I requested to transfer mature amount to my above sb acct. My repeated visits to po concerened has been futile so far. How to approach? Kindly guide.
Ubmitted

17