Data Card
Bill not updated properly after paying

I am using data card last 3 months. I have paid my bills of each month before daue dates at Reliance Communication, Usha Communication, Sector 6, Airoli, Navi Mumbai. But every months I faced problem due late updating bills by the above mentioned service provider to Reliance Center. Now I got bill with due ammount and extra changes. Every time above mentioned service provide promising me to update the bill but still not happene. I have reciept of the same.