Jet Airways — Fare difference after booking

Address:

Surat, Gujarat, 394270

Sir,

I have booked two flight tickets from Mumbai to Chennai.
For first ticket the ticket costs Rs.2811 per passenger (ZQPTTH)
After 5min i have booked another ticket on the same flight and the fare raised to Rs.3614. And i have booked for the same. (KKTPPQ)

After 10min the fare gets low to 2811. and currently the fare is 2811 only.

Pl refund the fare difference amount for my ticket.
( KKTPPQ)

Please do the needful.