POWR Pop‑Ups & Discount Popup

The app worked fine for some time. I upgraded to paid version for a few months but then got back to the free one. However, the charges continued even after contacting both POWR and Shopify support. On POWR dashboard subscription showed as free, but Shopify settings still had the subscription as active. Contacted the support multiple times, only received offers to upgrade to a more expensive option. They also previously insisted on writing a positive review which i did, because I liked the app initially. Changing the review now. Very frustrated with the experience and time wasted contacting support - with no use. They also refuse to refund the charges that were done after the paid plan cancellation. I had to delete the app.