Aircel — Internet recharged, but access problem

Address:

Kolkata, West Bengal

My name is joyjit das, my airc no. Is [protected], i recharge my aircel no. With aircel 67 recharge which provide 1gb 3g data valid for 5 days.Therefore my no. Was recharged successfully but could not access the internet,
So, when i use to check the 3g data bal from *143*0# code..The data bal showing but still can't access net.I used to call customer care service several times.They said that my prob will be solved..They submit a complain but after there was no response...

So, sir kindly solve my problem...
My alternate aircel no.-[protected]