Gujarat State Road Transport Corporation [Gsrtc] — charging more than mrp on the gsrtc official bus stand and official shop

Address:

Amreli, Gujarat, 365421

I was traveling from mundra to rajkot in GSRTC our bus made a halt on BABRA BUS STAND almost each and every bus stops at there.
After the stop i saw there's only one shop for food and cold drink so i purchased one hide and seed buiscut MRP 20 but he asked for 25 and for coca cola MRP 20 but he again asked for 25 . He charged me 10 rupees extra on 40 ruppes completely looted me i argued with them but they behaved rudely. SHOP name is ST UPHAR it's under the roof of BABRA bus stand sadly even though this type of dirty business is going on under government supervision.
PLEASE TAKE STRICK ACTION AGAINST THEM.
EMAIL ID:[protected]@gmail.com
here's my email address for any additional information and further information.