We do not discuss bans on the forum, if you wish more information on why you were banned then please contact Support: https://support.deadbydaylight.com/hc/en-us/requests/new
I'm so sorry that you've lost your progress, please head over to support to request help:
https://support.deadbydaylight.com/hc/en-us/requests/new?ticket_form_id=191306
Please also be sure to attach a screenshot of your Player ID when completing your request.