Reliance Jio Infocomm — my data exhausted very fast

Address:

37 C.R. Avenue ,Kolkata 700012, West Bengal, Kolkata, West Bengal, 700012

My data exhausted very fast by just seeing 5 to 6 videos for just 15 minutes in 240 pixel and then it shows that my plan have been exhausted. I have hardly used any data. They are cheating like this a lot in past few days. I am a student, and i have to watch educational videos which is affecting my studies.
Things got worst when i tried to call their customers complain number then there was just computer voices and nothing else. They don't take customer complaints.
I have paid around rs 330 for this service which is valid upto 3 months but on the first month they are giving worst service