I posted my honest review about 1xbit website more than 4 days ago, and so far I haven't received any payment from them.
They didn't reply to my private message I sent yesterday asking them for explanation, so I will consider this to be fake campaign that is not paying.
I think this deserves negative feedback and flag for not honoring the deal, but I will wait until Monday before I do anything.
How can you and others can trust a newbie with negative trust to pay for your reviews

Please wait until OP escrows the funds otherwise he won't reply and get free reviews / advertisements for his site.