Can't combine "Cart total price" condition with a "Category Specific" condi

I have spend over 2 days trying different criteria for something which I thought should be stupidly simple, but im starting to think its not possible or too complex for this plugin.

Here’s what im trying to do (stripped back to its simplest form):

1. Spend over £50 and get Product A free
2. Buy from Category X get Product B free
3. Buy from Category X and spend over £50 get Product A & B free

Criteria:

1. Cart total price > 49.99
2. (Categories = X) AND (cart total price > 49.99)
3. Categories = X

Also tried (thinking this logic would be more strict):

1. (Cart total price > 49.99) AND (Categories NOT EQUAL X)
2. (Categories = X) AND (cart total price > 49.99)
3. (Categories = X) AND (cart total price < 49.99)

Condition Order

1. Category X + Spend over £50
2. Spend over £50
3. Category X

The problem is, as soon as condition 2 (over £50) is met with products that are not in category X, and then you add in a product from Category X, it stops there.

The stricter version of Condition 2 (Spend over £50 and NOT equal to category X), should be overridden by condition 1 (Category X + spend over £50) as Condition 2 is no longer true ( as a product from category X is added).

So to summarise, if you have a total cart price condition that is met first, then a customer wants to add in a product from Category X they cant. This is because the cart total price condition has been met first.

Am i being stupid and fundamentally misunderstanding my own problem, or is this actually not possible to do with this plugin?

I will be eternally grateful if anyone can confirm im stupid and how it can be done or that what im trying to do is not possible.

Thanks ever so much ;o)

https://wordpress.org/plugins/woocommerce-multiple-free-gift/