Can I "undelete" a deleted Bookings Services with Booked Customers? HELP

Hi Booking Gurus - 

I accidentally deleted multiple Bookings Service Trainings with at least 40 Customers scheduled for the Trainings.  Four different sessions over 2 days with 1 morning training and 1 afternoon training. 

Questions #1: Although I can still see them as (deleted service) and was wondering can I "undelete" them? If so, how please?

Just in case, I recreated the services and was going to add the Customers to these recreated Trainings but the Training Services are not showing up on the Bookings Calendar.

Questions #2: Why is that when they are new services? Or where are they?

These trainings are for next week and the reminders go out on Monday.

Thanks for any guidance, kimshreesf