Cheating when buying a premium subscription

Hello! I have a problem. I wanted to buy a paid subscription in the Splice app. It was indicated that the subscription costs 105 rubles per week, the subscription is annual, that is, 105 rubles per week should have been charged from me. I was charged the amount immediately for a year, in the amount of 5490 rubles. Can i cancel my subscription and get a refund? The manufacturer did not indicate in the advertisement that the amount would be written off immediately for a year. I really hope for your support!