Not working any more – BB pocketcards Review

This app I bought, it is not update with. IOS 11 So it is not working , I will understand if it was free app , but we pay money for this app . I don’t know how these companies work , take people money and don’t keep there support . I don’t know what to say either you guys upgrade your app , which work iOS 11 and more Or we get refunded our money , I am going filling a complain to apple regardin this matter Thanks
Review by Hatem ali guima on BB pocketcards.