okay but I did a little more research on that fake id generator and it says that
Credit card: We use Graham King's PHP credit card generator. This script creates a fake, but syntax valid, credit card number. The expiration date is randomly generated to be a date in the near future. We use inactive prefixes to ensure that these cards are not used for fraud. These credit card numbers do not reflect anyone's real credit card number.
Do you still think I shouldn't use it?