Cant upload

Been trying for weeks to upload my project to be printed. Contacting there customer service is a joke they dont think there is an issue. I am using a new MBP which only has wifi and there fix is to use Ethernet to upload( Would have to buy thunderbolt adapter). They have there KeepShot app that only uses wifi why cant the desktop app do the same? Ended up going to another publisher to get my book due this issue. Apple should pull this app from the App store tell MyPublisher can fix all the issue with this application.

JustinFree08 about MyPublisher