Hello GHENAM

You need to check if your employee is assigned to the services that are grayed out. If the employee is assigned to those services, check Employee's working hours. You may have defined the services he's going to be working on in the working hours.

We don't have deposits included. What you can do here is change service's price so it's XX% of the full price. Then, in a "Text Content" custom field, you would inform your customers that they are only paying XX% right away, and the remaining amount should be paid on site. My advice would be to add a mandatory radio button, your customers need to click on in order to confirm they agree with this before they can continue.