Turnitin Instructor + Api Detection ✔️ 30 days warranted ✔️ instant delivery ✔️ You can only login on one device at time and you cannot add students. 300 checks limit and access via direct limit You cannot change password or email or payment method, you will get banned if you try to do.you might face max user limit exceed sometimes but its because of turnitin update system, this product is not refundable once your received, if there is any issue or it stops working we will replace your product thanks, do not open any dispute if you face any problem