Mahanagar Telephone Nigam [MTNL] — No proper service

Address:	Mumbai City, Maharashtra, 400608
Website:	mtnlmumbai.in

My internet is been not working properly for a year now. I have complaint registered also, one of the mtnl complaint id or the token number is 2889. I have contacted to customer care and the higher authority people also but no proper response . But yes bill is on time but no the internet and i always get dns error always and they just give me some dns number and it works for 3 days thats it, i have been complaining and i m really tired. The mtnl people always say that we'll send a guy to check your modem but till date i have never seen this happening where should i go, i was not getting at all so i thought to complaint here i hope you would consider this as soon as possible or else i'll consider that indian government work is as slow and the mtnl and sbi bank where the consumer is not satisfied at all and this website is same as mtnl and sbi.