Czcoindcx - Amount not refunded

I was browsing through complaints in the portal and learnt we have a similar complaint filed by Mr. Santosh Kumar Yenaduva on CzCoindcx.
I too got ping on WhatsApp and asking for do part time job and given the telegram link, I followed that person got the *** rs multiple times so they asked me to invest *k to get ****. I have invested the money, after that they again asking to invest more to get my money refunded.
On the first day, they started with giving google review tasks on different restaurants, we have rate * in order to make money. For each review they paid Rs **/-. I made around **** on the first day. On the *nd day they gave another task was given and they ask us register on this url https://opcoinvbdcx.com. I started with *k and wanted to withdraw after making **% profit but they kept on saying unless we do next task, we will not get the refund. I ended up putting around *.*Lakhs and gained *.** Lakhs. Now to withdraw those they are asking again to invest more *.** lakhs and and they are promising me that it will get me ** L. They also provided a letter of confirmation from CoinDCX on this. I have reached out to CoinDCX team and learnt that the letter was fake. I am attaching all the required documents and screenshots to support evidence. Please help to get my money refunded