Info:

Vid Slot Number:  Based on the time chosen, you will pick a number that corresponds with that time. There are 8 slots in all thus numbers between 1 - 8 to be chosen.

When booking Writers' Chat, Number is always '0'

When booking Vid Livestream; 

6 - 6:15 pm: 1

6:15 - 6:30pm: 2

and so on