Flipkart — Order cancelled after a week after a booking confirmed

Address:

Bangalore, Karnataka

i have ordered a bluetooth headset (lg HBS-730 Bluetooth Headset) for 1090 from flipkart and paid a money by net banking and after a week i got a message that by some issues seller has cancelled your order sorry for inconvineance we will rfund your money back in 7 working days to bank account and when i saw the availability of the product i saw it was available and its current price was 1999 so seller has cancelled the product which was about to be shipped. my question is? how can one cancel the product once ordered and even paid money just because its market price now was increased its totally against the laws once ordered and paid money the product belongs to customer seller has no right to cancel its just a courier to be received and this is cheating by giving offers and cancelling when its its price increased. order id-OD[protected] [protected]@gmail.com