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It doesn't work anymore. Now they have changed the rules and require your referral to invest $ 250 approximately. Only then will you get $ 50. https://help.crypto.com/en/articles/3124990-bg50-referral-program

Yes it works I just did it yesterday, and I received.

yesterday was the last day

It was the 17th, I did it on the 18th

Yes it works I just did it yesterday, and I received. 10.8 MCO