Learn what "there's gotta be some sort of mix up" means, when people say it, and how to use it naturally in English.

It means the speaker thinks something went wrong by mistake, not on purpose.
From The Perfect Husband, Episode 24
The speaker is suggesting that there must have been a misunderstanding or clerical error.
Use this when you believe there has been an error or misunderstanding. It is common in everyday speech and sounds natural.
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