From 19th May, i-TM4U system will change in 2 things

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1. Commission 10% won't be changed but calculation will be changed.

   We have calculated commission for each item price, then we
   sum up all the cost.

   We will sum up all item's price, then we calculate commission.

Example 
(Now)   
    Request item A: 7,000YEN + Commission 700 YEN = 7,700YEN
    Request  item B:  1,000 YEN + Commission 100 YEN = 1,100 YEN
   TOTAL = 8,800 YEN

(From 19th)
    Request item A 7,000 YEN + Request item B 1,000YEN = 8,000YEN
    Commission = 800 YEN
    TOTAL = 8,800 YEN

Result is almost same but we are going to take this way because we have to
accept request and send customers invoice as many as we can, and as soon as
we can. 

2.  Request item's total is Under 5,000YEN =4,999YEN(49,99USD), commission is all
    500YEN (5USD) 

    More than 5,000 YEN, the commission is same 10 % of item's price

(Example)

  Now:  Your request item price : 3,000YEN   commission is 300 YEN
 After 19th ;  Your request item price : 3,00 YEN commission is 500 YEN

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We are going to update and write this information on i-TM4U site tomorrow.