How to use RemoteEvents for buying items?

My RemoteEvent does not seem to want to work the way I intended. I need the starterGUI shop button to fire an event that removes Cash from the player's leaderstats and gives them an item but I can't seem to get the Cash value to decrease. Also my prints in the actual event are not showing up in the console. What is missing here?

local ReplicatedStorage = game:GetService("ReplicatedStorage")

local SwordEvent = ReplicatedStorage:WaitForChild("SwordEvent")

local player = game.Players.LocalPlayer

script.Parent.MouseButton1Click:Connect(function(player)
    SwordEvent:FireServer()
    print("Sword Purchase Requested")
    end)

This is the local script on the Sword button within starterGUI shop. This works as far as I can tell but maybe something here is happening?

local ReplicatedStorage = game:GetService("ReplicatedStorage")

local SwordEvent = ReplicatedStorage:WaitForChild("SwordEvent")

local function onSwordPurchase(player)
    print("Trying now...")
    if player.leaderstats.Cash.Value >= 100 then
        player.leaderstats.Cash.Value = player.leaderstats.Cash.Value - 100
        print("Bought a Sword")
    end
end

This is the actual event. There is no actual sword object yet, I am just trying to figure out why the Cash value will not change and why the prints will not print.