i am from Taiwan ,and i am not really good at english.
today i used the "free trial" to try TAB PRO
but it cost me 31 NT$ on my visa card bill after the trail. why?

and below is the most important thing!!
i just accidentally pressed the lifetime access buttom!! i was scared and closed the website, but it still cost me a lot of money!!(and it said 70% off on website but it cost me 100%)
i have contact official through customer support, but i am still scared and don't know if it works, so i post my situation on the forum just hope you guys can see it
i am a student, i still cannot afford such ammount of money!!i am frightened and so sorry, can i cancel the purchase ? please!!!