Uber India — complaint against promo code of 50%

Address:

New Delhi, Delhi, 110092

Hi last three days i am using uber cab n i have availed n apply the promo code of 50% off on your next 10 rides. But i think uber people don't understand the meaning of 50%. Instead of that they only reduce rs50 from total fare. If rs50 is off then why they r promoting 50%. 50% is something different half of your total ride.
So plz stop promoting.