Newly created user credited with 4 appointments automatically

Dear Support,

I am continuing to extend my understanding of the Appointments plugin and have come across the following oddity.

1. As the super admin I created a new user "kasiawpmudev".
2. On successful creation I view the list of all users.
3. I click on the new "kasiawpmudev" user.
4. Scrolling down I see that the user "kasiawpmudev" already has 4 appointments booked against her on different days with the status "confirmed".

This is impossible and I'm thinking it must be an issue of some sort.

I have attached several screenshots and granted support access in the back-end.

Thanks in adavance,
Will