NOT TO worry friends,I got the bill too... but it was solved.. Actually i applied for a change of plan from 250 startup to 900 UL in December 2007.They told me tat it( 900 UL) wil be activated from Jan 1 , 2008. so i started using like ulimited user. later when i checked the usage, it showed me Rs 70000, i was shocked and rushed to the concerned bsnl Asst.Engineer whose the incharge of Braodband in my area.I told him and showed every proof.... like..Receipt for the advance paid for 900 UL i.e., 900 RsUsage details from the Jan 1st ( screen shots)Finnaly he adjusted my bill and assured my Revised Bill this month... so i suggest you to... 1. lodge a compliant to customer care2. Get the complaint number3. send a mail to customer care with the sceenshots of ur usage 4. Meet your Local BSNL Area Manager ( with all ur receipts and usage screen shots)am sure they will help u out..so.. don't worrie ... cool... IT's all BSNL problem