A refund is traditionally read as getting back what was given in error, or a wish to undo a decision. It speaks of fairness restored, or of trying to reclaim time and energy already spent.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.