Learn English Grammar [Pro]

Good morning sir I would like to inform you here I don't want to have this application because it doesn't have enough examples of tenses and grammar as well second thing my TalkBack is not working with this so I can't use this application I am not satisfied with this so please give me my refund back in future if you will update this application I will purchase it again but recently I don't want to have this application if I am not satisfied with this application why can you not give me my money