I purchased the membership in Jan 2021 for my daughter's exam I didn't check my credit card transactions until recently Aug 2021. My daughter had not accessed the site since march yet they continued to bill with no email or warning that the charges were happening.
When I called to dispute the charges there was absolutely no remorse from the company. They totally ignored all of my pleas to return the money DESPITE NOT USING THEIR SERVICE AT ALL.
Any respectable company or business owner would not do this and would refund the money if the service wasn't used. They are totally out for themselves and will swindle you out of your money with recurring charges.