Smiley Tot review for Shipr for Amazon FBA / MCF

Very Disappointed. The app didn't create a fulfillment service selection for my product so I had to uninstal > reinstall to correct the issue. Upon trying to reinstall I received a 500 error that Shopify was unable to resolve. There is not support for the product and documentation is vague. Now I'll have to dispute charges with credit card company. Just a headache all around. I've spend days trying to resolve the issue without a peep from Shpir.