Hi, boosting means that this post will be reviewed by ecency curation team.
If they accept you get your boost, if not points are refunded within 24h.
In case you often get boosts refunded, try higher effort in posts or lower the boost worth.
Anyway it should always be your own work and sources propper cited.
Hope this was helpful :-)
Thanks for Your response Mate 👍🙂. Much appreciated!