Due to constant spamming, and overwhelming amounts of email, we have changed our address. If you have questions, please email us at howtoteachscience_team@yahoo then add the dot com at the end. Please note that the address you used to pay for your item is a commerce only address and is not for correspondence. If your need is emergent please call 251-404-0417. Thank you and we wish you many blessings and increase.