Sustainable Exchange review for Webkul MultiVendor Marketplace

I added the app thinking I might give it a try but struggled with it and thought I cancelled out before the free trial ended. I got billed. I contacted Shopify, had to do backflips to prove to them I was the owner of the account, then got punted to the app admin who denied request for refund. Hardest $10 I ever never intended to spend. Sucky McSuck Face Customer Service.