About the price .

Hi Dear, I already paid for my PHD proposal ( assignment which is now in my tutor's hand , and he was very satisfied. About the price . But as he told me about the work he is doing , I wanted to add just around $30 as to appreciate his efforts , ( to the main price which is already paid ) although he didn't ask for it but when I updated the price it showed a new whole price as if Iam paying again , which definitely I can't pay . And the status of my page is still awaiting payment . Please I need to contact my tutor so please update my page so that I follow up with him as my assignment price has been already paid . Please very important because the due date of my assignment is very soon . Thanks for you support and understanding