Everyone on Helix knows the issues, but just as a warning, i had a payment taken out of my account in the middle of the night on a bank account i haven't used for ages for a sub that i let expire months ago (i can tell this by the value taken)
it was a web transact payment, so people be vigilant, i presume this is exactly why you should use Bitcoin for payments.
I'm incredibly disappointed with how Helix has handled this on going situation. They have disabled/deleted every social media site they run and have yet to release any statement regarding the matter. I was one of the strongest supporters of Helix, but the way this is turning out is extremely shady/questionable. Unless more proof of the "hack" surfaces, it may all be a way to ditch and run. I really hope I am wrong, but the complete radio silence does not go well in their favor (especially if people are still being charged) .
Hope your able to cancel the charge and switch to a new card.