Blink outside the box review for LoyaltyLion Loyalty Program

Have been trying to remove app from my store for days now and cancel my subscription. There’s no way to remove the app yourself with out the developer contacting you first . I’ve left several message with the app that I want to cancel my subscription and remove the app from my store but I’m being ignored . This app is very expensive over $400 a month and impossible to remove once installed . Shopify support is no help on this issue either . Please cancel my subscription and remove the app from my store .