Uber India — not able to change current city and also facing booking issues

Website:

www.uber.com/en-IN

I'm not able to change my current city even after so many mail communications, also tried with some other account to book cab, it is showing some error and couldn't book any cab even after trying for more than 10 times. Really disappointing experience from uber as i'm a regular customer o[censored]ber. Atleast uber should provide a proper customer support instead of sending same auto replies always for all the mails.