Tata DoCoMo Broadband 3G — slow internet speed in 2G

Address:

Pune, Maharashtra

I have a Data Docomo 3G plan. it has the limit of 6GB and it works superb untill those 6GB limit is there. but as soon as it jumps on 2G, it is even worst that dial-up service I used to use in my childhood. They say I can use unlimited 2G service but the service is so crap, I couldhardly use 5MB of data in last 10 days. I am trying to reach their customer case service but on their website after clicking 10 times I have reached toll-free customer care number which is also not reachable or says i am in a queue. I think there ad on TV are very much true but they do have hidden non-complience service issues too.
I am using the service in Pashan area of Pune.