Only within 7 days after the first day of class - before the second class, please! So we can plan accordingly! ALSO, if the materials are not returned, it's a $40 fee! Also, please note that non-attendance does not indicate that you have withdrawn. For a refund, please call/text/email us before the SECOND class of the semester to get the refund. Thanks for your understanding as we keep our smalll business running for the community!