Someone heard about raritytrade?
It is not a reputed exchange and it has not listed on coinmarketcap so there is 99.999% chance the site is a scam if they really asked 0.1
BTC to enable withdraw option.
Someone asked a favor to create an account on raritytrade via telegram and you deposited 2 BTC there? How it is possible where you were not sure either scam or not and also you asked for opinion though there is no positive opinion and you had not used earlier you deposited 2 btc. I think you are trying to scam people by saying this unbelievable speech.
If you cant offer collateral then you should lock the thread to avoid negative trust.
https://archive.fo/Llz51#selection-371.0-481.196 reference to your post about the exchange where you asked for an opinion.