Billing is very straightforward.  Twice per month the meetings held are tabulated. A statement is mailed (or faxed if you request faxing) to you showing the dates and lesson lengths and total price. You do not have to do anything with the statement. It is simply to help you keep track, and to let you check the math and dates if you wish.

You always have an itemized statement and you only pay for two weeks at a time.

Then this information is sent by secure termial to your credit card company. It later sends you your regular credit card bill showing that amount.