汉译英求助,老师们帮下忙,

If the refund procedures are too complicated for you, I wonder if you may calculate the money to return and keep the money as advance payment. Because I want to continue to participate in the auctions that you hold in the future. I will promptly pay the sum payable when I win the bidding.
求分哦!英语对我来说就像是母语,所以不必担心会否有错漏.有啥不懂的还可以来问我哦!