I used free trial for 7 days then I forgot to cancel it. I also thought if I forget I would be charged with only one month fee. However 8th day I saw that one year membership fee was taken from my credit card then I sent an email explaining the situation and to get a refund. They got back to me in an hour and send my refund at that time. Their support team was very fast and helpful.
Thank you,
Sinemyis