I can see why!
Some leaders are better than others, perhaps try another meeting if you can and give it a second chance? I'm not a leader but I help in my meeting so I'm fairly experienced and will try to explain 
Pro points- the current points system. Occasionally they revamp and call it something else so in the past you have pure points, points, 123 etc. Its just pro points now. You have a set amount per day according to your height and weight and 49 weekly pro points. You ensure that everything you eat is taken from your propoints . This means weighing and measuring stuff out to ensure portion sizes are OK and tracking what you eat.
Filling and healthy - this is an approach that means no weighing or measuring. There's a list of foods that are acceptable and the list is about foods that fill you up and are healthy
such as veg, fruit, lean meat, calorie controlled bread etc and you eat to appetite. A lot of people use F&H if they are eating out and can't calculate points or if they want a change for a bit.
You can pay 2 ways, you can do Monthly Pass which is &10 for the first month and £21.45 per month afterwards. Monthly Pass is computer based, there's a phone app and you can use it to track your points, look stuff up and generally be in control and organised.
Or you can pay at the meeting, its £6.25 per week so more expensive than monthly pass and you don't get the online stuff. What you can do is buy from the meeting a journal, a points calculator etc and track your points manually.
I do monthly pass as its cheaper and the online gubbins connects to my fitbit and tracks my activity automatically. But its up to you whether you choose paper based or online based. Either way you attend your weekly meeting.
Give it another go and try another leader if this one is crap 