Noun:

1. a payment larger than needed or expected

2. the act of paying too much

overprep.在 ... 的上方；遍及地；在 ... 期间adv.穿过；完全覆盖；结束；落下n.(板球中)每个投球手一次连续所投出的球数overfillv.装得太多；装到满溢；充满

1. The overpayment will be reimbursed to you.
   多付的款项将退还给你。