MyTVS — Car neither delivered nor any update

I have for first time thought of giving car for service to mytvs service center .
Car was booked for pickup at 8am on Saturday 13th Jan 24. But the person came around 10am for pickup . Car is serviced in Guindy branch.
It was committed that car will be delivered back and will be dropped at my pickup location on Saturday night.
I got call on Saturday evening ..
It was said that brake to be replaced but material is not available now, if I confirm it will be ordered on Tuesday and they said that I can drive for 500kms with these brakes. I said that I need car for next 2days and also I need car to go to office on Tuesday, so will do this later..
Then bill is generated and they said that I need to make payment for generating gate pass for car delivery. I made the payment and sent screen shot. After this, there is absolutely no update or any information on car delivery. I called all available contact numbers but no one to answer as office is closed. I tried for customer care. Then I got a call from customer care on Sunday at around 9.45am and he said that he will revert by checking within 2mins claiming that he has other contacts in Guindy service centre. There is no response after this till now.