HiI use a BSNL broadband thay my mother took the connection from BSNL. We had Unlimited (UL750) connection that once we changed to 500 Combo and we were using it for 1.5 years and also BSNL is sending the bill in which it states that it is 500 Combo ( Fixed charge - Rs 500, Free call- 175) ..now sudeenly I got a bill of huge amount 10,000 Rs for this month and when I tried to check in BSNL portal server to see my usage ..I saw it didnt deduct the data downloaded/uploaded during the free time ( 2am to 8 am) from the total data usage and thas why the total data use became 10 Gb instead of 2 GB ( I downloaded 8 GB at night free time) ...Now when I approach to BSNL office to tell them that why it is like that and these data use should be deducted they said that in their computer my connection is Home 250 not Combo 500 ..it came out that my mother initially thought to change the unlimited connection to 250 gave a letter and later decided to change to Home 500 and also gave a another letter (...they show me both the letter of my mother ..asking to chage UL900 to Home 250 and also a letter asking to change UL900 to Home 250a nd both the letter didnt have any date) ..and BSNL first changed the connection to Home 500 and next month to Home 250 ...but somehow due to their mistake and inability to enter the data in their server ..the telephone bill I got came as if the connection is Home 500actually ity is mixed ...somehow the data download limit was set as 2GB ( like 500 Combo) but no free slot was provided (i,e like Home 250) ...and we didnt knew that our connection Home 250 , neither BSNl told me , nor it was reflected in the Bill ( In all the bill that we got, it was qouted as fixed charge -> Rs-500, free call ->175)...now they want that I should pay the 10000 Rs bill .....I asked as it is also BSNLs mistalke as First they didnt inform me that they changed to Home 250..Secondly they gave me wrong bill for this long time showing Home 500 connection for 1.5 year.What should I do. I meet with local accounts offcer ..but they says yes its their mitsake in the bill , but I have to pay....they said that only what they can do is to remain silent on the past 1.5 year bill..means they will not recalculate it based on Home 250 plan + seperate telephone plan..thereby I dont have to give the large sum based on recalculation..... but I must have to pay this 10000 Rs bill...They said that even there is no date in the letter of my mother still its a letter ...and also they said its not their duty to inform us that they changed my Plan....while I asked about the wrong bill why they mislead me for so long time..showing it Home 500 i,e why I downloaded in the night ..if I could know it is Home 250 I would not ...they said its their mistake ...but they will recitify it ...but I have to pay the whole sum...What should I do ? If I go to consumer Forum or to law Court ..is their any chance I will win or I have to pay the whole sum for 1.5 year ...I am so worried...Pl help...I curse myself that We took connection from BSNL.with best regardsRam