wordpress myCRED plugin expert(urgent)

I have subscription membership site. when they join in member , and i click on admin panel for mark as paid. they will get instant additional adjust balance from my cred points. First; In screenshot4, you can see referral typebox. if that typebox typed my username "redrose" and when you buy membership premium 300 eternal ruby added to you, automatically eternal emerald add on selected account "redrose" 20% from your value. so selected account "redrose" get 60 eternal emerald. you get 300 eternal ruby. Second; In screenshot3, you can select items "Gold", "Silver", "premium". If you select "Gold" 3000, If silver 1500, If go premium 300, you have to show this value in "Eternal ruby" on screenshot2. This is simple task for expert in this plugin and it will take less than one hour. If you are confident in this task, please bid. Regards.