I contacted Shopify's billing department and customer support weeks before renewal and requested that all billing be stopped. I was unable to log in, but they assured me and confirmed that all my payment methods were removed from my account. Three weeks later, they charge me triple what my renewal was supposed to be even after they confirmed that renewal was cancelled. They refuse to even acknowledge the mistake and they continue to ignore my emails. And their support team is beyond useless. After reading more reviews, it's clear that this was deliberate and that they regularly steal from their customers and screw them over.
