Some questions and errors

Hi

Today I bought the hotel theme for wordpress I am considering 3 situations.

1) I can reserve the same room more than once on the same date, this is serious for me.

2) I don’t know how I can cancel or change a reservation date, when I click on the canceled woocomerce order, it deletes other reservations.

3) On one occasion I tried to use a 100% discount code to test and it found that there was a minimum of 1500

thank you very much I hope you can help me

in video
https://www.loom.com/share/2008a49fdae740fca9d7d808a331eb92