Change a Players Gui?

Yeah so I have tried to make a script where as long as the player as standing on a brick every 5 seconds their Money Gui goes up by 10. But the problem is well, I am not sure thats the problem. For whatever reason it just doesn't do anything. What am I doing wrong here?

local player = game.Players.LocalPlayer
local paybrick = script.Parent
local MoneyGui = game.Players.LocalPlayer.MoneyGui


function payperson(player)
    repeat
    if player.PlayerGui.Job.Jobname.Text == "Cashier" then 
        MoneyGui.Value = 0 + 10 
        wait(7)
    else
        end
    until(player.touched == false)
    end

script.Parent.touched:connect(payperson)