Does anyone have any resource to clarify whether a lender is required to accept a QWR via e-mail or other electronic communication form?

Thought I would post my own followup just in case anyone else got this question. CFPB representative returned my call and stated that we do not have to accept a QWR via email or any electronic method since the transfer of servicing notice the customer received gave them the address to write to for submitting a QWR.