There is no application fee. For those who wish to apply for the next programme entry (April 2021) applications should be submitted by January 1, 2021 (exception cases will be considered on a case by-case basis).
It is also possible to enrol during the ongoing programme. You could choose to start with any of the modules.
Further, if your are only interested in one or more specific modules, you can also decide to choose only that module/those modules. In any of these last two options, applications should be submitted no later than two months prior to the start of the module of interest.