I have invited two of my friends to sign up the KOPERNIO, it says "When a friend joins we'll upgrade you to Kopernio Premium for free."
But I haven't been upgraded to the Kopernio Premium. Could the someone tell me why?
This should be applied automatically as soon as your referee signs up. If this is not the case please drop us a line at email@example.com and we can upgrade you.
I have received your email. Problem solved. Thank you.
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