A training, event or programme here can have a fee, and it says so on the page with a named organisation behind it. Being asked for money in private is different: no fee to process, secure or release anything, and nothing paid to a person instead of an organisation. That is a scam - report it.
Fully funded masters in the UK, one year. Open to most countries. You need two years of work experience, which they count generously, including internships and self-employment.
The four essays are the whole application. Leadership, networking, study plan, career plan. Start them now, not in October.
The networking essay is the one people fumble. They are not asking whether you know important people. They are asking whether you build relationships on purpose and what came of it.