Xiaomi India — cheating customers with fake offers

Address:

Meerut, Uttar Pradesh, 250001

Lets keep the story short
I ordered order id:[protected]
Crowd funding 2 months back for 2499 INR .company asked for 1 month time.but after 2 months passed executive called and requested me to switch the color because blue color was not available. For same he offered me additional 500 discount so the shoe will now cost me 1999INR as a compensation for company's fault in delay. But today when i got the f code and 500 discount coupon the price on web site is changed to 2999. So after applying 500INR coupon the price is 2499 this is same price at which i booked my choice color shoe.
Now
1st took 2 months time
2nd changed my choice color
3rd convinced me by offering 500inr discount.
4th changed the deal
What kind of cheating game is mi india playing with us?