Not providing proper bill

I’m not getting proper response from Amazon. I called them many times but they are telling me wait for 4/5 day every time to resolve my problem.but all the time they are giving me same reason. I got tired to call them, but they can’t provide me a suitable bill. My details are given below.Order date

12-Jul-2018

Order #

406-8719869-0528333

Order total

8,499.00 (1 item