support with 16 audi a3

Hey guys just trying to get some feedback i am trying to flash a audi a3 and it failed a number of times saying invalid checksum. i have contacted tech support but here i am at day 4 with no responses for 2 days yes ive tried flashing stock file and edited file ive tried cal flash and write entire. im stuck and wanna get this car done for my customer

What is your ticket number?

23528

Looks like one of our techs responded yesterday in that the issue was escalated to our Audi engineer for further review.