; or (II) in the case of any other operator, the address of the principal place of business of the operator and an email address or online contact form and telephone number for the operator; (ii) to determine whether the operator possesses any personal information of the child or teen, the nature of any such information, and the purposes for which the information was collected and is being retained; (iii) to obtain any personal information of the child or teen that is in the possession of the operator from the operator, or from a person specified by the operator, within a reasonable time after making a request, at a charge (if any) that is not excessive, in a reasonable manner, and in a form that is readily intelligible to the child or teen; (iv) to challenge the accuracy of personal information of the child or teen that is in the possession of the operator; (v) to determine if the child or teen has established the inaccuracy of personal information in a challenge under clause (iv) in order to have such information erased, corrected, completed, or otherwise amended; and (vi) to determine the method by which the operator obtains data relevant to the child or teen. (C) Limitation Nothing in this paragraph shall be construed to permit an operator to erase or otherwise modify personal information requested by a law enforcement agency pursuant to legal authority. (7) Individual participation principle The operator should— (A) obtain consent from a parent of a child or from a teen before using or disclosing the personal information of the child or teen for any purpose other than the purposes described in subparagraph (A) of paragraph (3)