I only wanted the app one month but I've been charged for two months
Valentine's Day has two subscriptions plans: monthly and annual.
If you choose the monthly plan you have to remember to uninstall the app before the second month starts because Shopify charges you for each month in advance. Please note that this is how Shopify recurrent charges work, it's nothing specific to our app.
If you want to keep the app for more than two months you have to choose the annual plan, at it is cheaper than a 3-month subscription.