SCAM ALERT!!!

[libert19]

...I would like to believe that people will begin to learn from the mistakes of other people and not their own.

People learn most from their own mistakes, however its better to learn from other's mistakes so you don't repeat same.

Does that mean crypto arbitrage doesn't exit?

It exists, op got scammed due to scam exchange.

How can one know the right crypto arbitrage? Any guide on that?

Well, you compare price of particular coin on two exchanges, if there is difference you pocket it. Search, 'crypto arbitrage' on Google and have a look around, there are plenty guides.

[Cryptoababe]

A friend was introduced an exchange like this to me. Its called now2trade exchange. Where you can sell at higher price then withdraw to make profits. I didn't even bother to signup after checking about the exchange.
A little bit research should be done before sending funds to any new exchange because they will pay first and will later stop paying when they make enough from you.

[Bhig Daddy]

One of the biggest place to scam someone about bitcoin is on Telegram channels, the rate of scam there is just too much, so I will advise to stay away from channels you don't really know much about. I know a lot of friends and people who have been scammed so much on Telegram.

[r34tr783tr78]

The OP hasnt post here again on some days. He should change the title if he really wants to warn people and press the channel to return the money. Add something like ProfitPRTMANA and telegram channel. Google dont OCR the images he posted. Anyone searching wont find anything to be warned about. He should also show evidence of his transfers to the channel.