Question: I'm wishing to do the trek in June, and am wanting to book with LTTS. I've just been reading about the new booking system of the campsites through NT National Parks, which seems to sound like there will be a limited number of spaces on the trail? If I book the package with you, does this guarantee me a spot on the trail, or will I then need to hope to secure a booking when that opens up? 
Booking with LTTS will secure your transfer seats and trek support services for your dates but you will also need to book a trek permit with NT Parks when the permit booking system opens 1 March 2022.
Booking with LTTS does NOT guarantee a permit. They are two separate commitments, one doesn't support the other. It is the same across the board for everyone.
You will need to book your permit separately from any LTTS booking

Question:  I'm wishing to do the trek in June, and am wanting to book with LTTS. I've just been reading about the new booking system of the campsites through NT National Parks, which seems to sound like there will be a limited number of spaces on the trail? If I book the package with you, does this guarantee me a spot on the trail, or will I then need to hope to secure a booking when that opens up? 
Booking with LTTS will secure your transfer seats and trek support services for your dates but you will also need to book a trek permit with NT Parks when the permit booking system opens 1 March 2022.
Booking with LTTS does NOT guarantee a permit. They are two separate commitments, one doesn't support the other. It is the same across the board for everyone.
You will need to book your permit separately from any LTTS booking

FAQ: Booking with LTTS and Guaranteed Permit?

FAQ: My Booking is on Hold. How Do I Rebook for 2024 and beyond?

FAQ: I need to change the dates of my booking. How do I do that?

FAQs: I've lost my booking paperwork, can you send it to me again?

FAQs: Why can't I make an online booking for 6 or more people?

I want to cancel my booking. What is the process?

Do I need to book my accommodation before I make my Trek Support booking?

What does the 'No Accommodation, No Transfer' Policy mean?

What does the 'No Fuel No Transfer Policy' Mean?

I would like to add extra people to my trek package or booking. How do I do that?

Where are your Trek Support Terms and Conditions Listed?

FAQ: One person has pulled out. What is the process for refunding and downgrading?

Pre-Arrival Email: LTTS Checking In - Your Upcoming Trek

FAQ: I need to modify my booking. How do I do that?

How Do I Make a Booking?

FAQ: What is your Cancellation Policy?

FAQ: When booking a transfer, with a pick up from Red Bank Gorge, should we book for the start date or, the end of our hike (when we would like to be collected)?