Is there any chance of me getting back my Btc from an address which I was not supposed to send or even a chance of getting in contact with the receiver ?
Its so sad to hear that, you must always double check your bitcoin address before you posted it in the thread. However, I do not think if you can get it back because its already send in unknown receiver. But for sure you can change your btc address registered in the spreadsheet try to contact the project manager and let them know your problem. They are only person who could help you, because lately I experience a problem in my account and ask the project manager to help me and they really assist me. Thanks to them.