Horrible ... Had one day – Voice Translate Pro Review

I've had this one day . Paid 6.99 and no mention of any subscription needed and this is the message I get when trying to use it? TranslateApiException: The Azure Market Place Translator Subscription associated with the request credentials has zero balance. : ID=5107.V2_Json.Translate.352B3D14
Review by Meiamme on Voice Translate Pro.