Recently I purchased a game on Google Play on my Samsung as 20 plus. The thing that concerns me a little is I click the option and it automatically started the subscription but I did not give any credit card information. Is this something a setting maybe that the phone does or should I be concerned about this? Thank you for your time
It used the CC info that you previously associated with your Google Play account.
To see what payment methods you have already setup:
If you want to prevent automatic purchases in the future, try this: