I just want to correct your comment unless anybody else sees this.
By default this is not how Patreon works. For most creators you are not charged until the end of the month, so if you sign up on August 2nd you are not charged any money, and the money doesn't go to the creator, until September 1st.
They do have a new setting for Patreon campaigns that lets the creators change this, but many have not.
