这件外套尺码不对，所以我退掉了，现在我有了一笔信用额度。

The coat was the wrong size so I returned it and now I have a ___credit.

你的手机上有多少余额？

How much ___credit do you have on your cell phone?

我现在不能给你打电话，因为手机上余额不足。

I can't call you right now because I don't have enough ___credit on my phone.