I am unfortunately a bit confused.
There are 29.99 and 18.99 prices for premium subscription for one year.
Is the price higher forever? Or is it necessary to pay subscription next year?
If the answer is “yes” and I have to pay the end of year, then what is the difference between a lower or higher annual prices?
The second question is that if, for example, I activate one of the annual subscriptions and use it for a week and I don't like the premium subscription, can I cancel it? And after cancel subscription will my money be returned?

Thank you.