Telangana State Road Transport Corporation [TSRTC] — money refund issue

Address:

Nizamabad, Andhra Pradesh, 503224

I have booked two tickets from Armoor to Hyderabad(Service No-8006)in Rajdhani on May 1st 2018 at 04:05pm with seats(7, 8). Initially it was booked and everything was good. Later I got a message from transport department saying that your ticket number 57470253 from Armoor to JBS is cancelled on may 1st 2018 at 4:05pm and money(Rs.669) will be refunded and amount will be credited in 4-7 working days. But it is been almost 7 days yet there is no update. I want my money to be refunded immediately. Please kindly do the needful as soon as possible.