Reliance Communications — cheque not received

Address:

Ludhiana, Punjab, 142026

Myself damanpreet singh from ludhiana (Punjab)
Last year i paid around rs.11000/- advance as yearly rental.
But after a month i got a call that yearly 3g plan wont be continued and so i decided to port to airtel.
And my due balance from reliance has to be recieved by cheque.
Its been more than a year i havnt got any response about my balance.
They likely said that 2 months rental will be deducted from your money and remaining balance you will recieve by cheque in 40 to 60 days.