TOPIC: E-Statements

e-statement terms acceptance retention

Chief Compliance Officer at a bank ($459MUSA)
Can any of you think of a reason it would be necessary to retain evidence of e-statement terms acceptance on each customer who enrolls through online banking?  They're demonstrating consent when they request to view statements and disclosure is delivered electronically.  That should suffice.  We have been retaining copies of reports listing each customer that enrolled the previous day.  Necessary?