Private customers About us eBill User Feedback Do You Have Feedback On eBill? Do You Have Feedback On eBill? Fill out the following form. We read all our feedback through carefully, but unfortunately we cannot provide a response. If you have questions or problems, please contact your bank. Personal Details Title* Ms. Mr. First name* Last name* E-mail* Your bank* Subject* Message* I have read and accepted the data protection regulations of SIX.