Consumer Redressal

Dear Sir/Madam, I am using Tata Docomo #9845755666 from past 6 months i am not getting the network in bangalore surroundings so i was made complaint SRNO.452805489 to Technical Team after some days they called and told we will give some discount on the bill as the promised me of Rs. 150 * 6=900/- which they as to credit my bill not they are not credit i was paid the full bill amount every month after several request and complaint my network issue and discount issue was not solved so i moved the other network now they are asking me to pay final bill amount of Rs.341/- i got message from 1901 so now i required my discount amount after deducting my final bill amount of Rs.559/- Kindly consider my about request and give me the back of Rs.559/- after deducting my final bill amount if i am not getting network in big city bangalore itself how i can use this network i have lased so much business of using this tata docomo post paid connection moreover there is no good response from customer c