Bitcoin & crypto currency fraud

Dear All, I am seeking some legal advise here. I buy and sell cryptocurrencies on one of the Bitcoin Wallet named "Bitcoin India" based out of Hyderabad. I had more than 7 lakh Rs currencies in my account, few bitcoins, IOTA and some cash. There had been several negative feedbacks regarding my bitcoin wallet that they are fraud and doing scam and do not let you transfer your bitcoin to any other wallet etc.. So i got scared and today decided to send my bitcoin to other wallet "Unocoin", however as soon as initiated the transfer today, they have blocked my account and when i raised a ticket through their customer support that why have they done so, i received their response that "they found my behavior against company terms and condition hence blocking my account for 30 days." where as i did not do anything new today as i have been using their wallet from last 2-3 months and i have transferred my bitcoin earlier as well and they were transferred easily. Now after reading all the negative reviews from several people and everyone is talking about the same problem and taking a legal action against them, i am very scared and confused as i have lot of money stuck in their wallet that i cannot withdraw and i really dont know if i can take a legal action in this case. I have their formal emails of purchase and sell that i receive for every transaction that i have made with them. Can someone please suggest something. thank you very much everyone in advance.