I think there's a misunderstanding.

Meaning

We seem to have different interpretations.

Examples

• John: I thought we agreed on Friday.
• Alice: I thought we agreed on Saturday. <b>I think there's a misunderstanding</b>.
• John: Oh, maybe we should review the email.
• Alice: Yes, let’s do that. <b>I think there's a misunderstanding</b> about the date.