恐怕你搞错了。

I'm afraid you are mistaken.

《新英汉大辞典》

对不起，但恐怕你搞错了。

Excuse me, but I'm afraid you're mistaken.

youdao

顾客：恐怕你搞错了，能核查一下账单吗？

Custom: Well, l am afraid you have made a mistake. Would you check it again, please?

youdao

顾客：恐怕你搞错了，能核查一下账单吗？

Custom: Well, l am afraid you have made a mistake. Would you check it again, please?

youdao