You will pay an initial payment to reserve your unique number and Limited-Edition model. This will be charged immediately. In September, you will receive Pack 1, containing the first stages of your build. You will then receive one Pack each month for the next 11 months you will not be charged any further amount until Pack 6 as Packs 1-5 are included in the Limited Edition reservation price.
Don’t forget, you are free to change your mind and request a full refund at prior to September 2020.