AfterShip Returns & Exchanges

So far, just trying to set things up. I had thought its one layer, but for a simple return you need:
Returns Center
After Ship
Postmen
Then a shipping center.

Postmen doesn’t connect well with any shipping center. Returns dont work when printing labels. Customer service is only email. Now 4 emails in and having to repeat the issue, and not having a solution out of the gate. Is there a way to expedite service? Help with sales? Just on trial mode, and having horrible luck getting everything to work.