Are you receiving more than one booking in a single time slot for a single member? It is important to ensure that the booking and availability calendar match up. To check this, log into Appointlet and head to Members > member name > Calendars and ensure that the Booking Calendar is also ticked in the Availability calendar section:

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Update Member Availability

Set Up Member Availability by Date

Set Up Member Availability by Meeting Type

Availability Calendars

Pooled Availability

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