Gujarat State Road Transport Corporation [Gsrtc] — Bus is late for 4 hours to reach destination and brakes problem

My complaint is that i booked 2 tickets from Surat to Vallbhipur from GSRTC website. My date of journey was 03/05/2023 from Surat to Vallbhipur in sleeper.My PNR no. is
G[protected] and trip code is 1745NVSPLTTSLP1. My total bus fair is 327/-.My journey time was 7:00 PM. Bus was on time at surat but it reaches vallbhipur 7:00 AM instead of 3:15 AM and yes it is 4 hours late and when i ask reason for driving slow then they told me that brakes are not proper working thats why we are driving slow but my concern is that you travel from Surat to all the way till Vallbhipur without proper brakes. You are risking our lives so what i want is first repair all this type of buses and give me refund because it is not acceptable. Your slogan
Steering Miles With Smiles is all wrong if brakes are not working then how are you gonna chase miles and with smiles. So at last request you to refund me in my bank account as soon as possible.