Cafe Coffee Day — payment

I work as a cardiologist at fortis punjabo we get ten percent discout in hospital ccd by telling employee i. D. Today they cut the bill without discount nd when i objected manager asked for my i. D. Card which was n my office. I told her my name nd employee i. D. But she behaved rudley nd refused to give money back. This is how they behave with doctors. I think there behaviour with common people must be worse. I dont feel like visiting hospital ccd again