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Do you get any errors? Are you logged in with your active key or master password?

Ok, if there was no errors, then boosting takes from few minutes up to 24 hours until it gets reviewed by our human curators, if it is not curated/boosted even after 24 hours then you will get refund. You can read more about How boosting works in our FAQ: https://ecency.com/faq#how-boosting-work