Gujarat State Road Transport Corporation [GSRTC] — refund process

Address:

Vadodara, Gujarat, 390023

I have a use GSRTC APP. and booked ticket process for dtd. 23.02.2018. Payment deduct in my credit card account. but problem ticket not booked and not receive booked msg. All ready choose another bus. So please help me refund my payment. All ready call customer care no but no response.

Below my credit card msg : -
" Rs.356.00 was spent on your SBI Card no. ending XX5627 at GUJARAT STATE ROAD TRA on 23 Feb 18. Remaining credit limit: Rs.7, 467.98."