SenHub AI Print on Demand POD

I want to close my Shopify store, but I still have an amount stuck in the SenHub POD wallet balance. Their support article says you have to write them at their contact @ email address, but it bounces. So I filed a developer support ticket, but no response. And I wrote them on their live chat app, but no response either. These are scammers who steal your money if you ever want to quit using their service.