RC59 is not a Corporate Representation. It is a Business Number Representation Authorization request form.
CRA List of Business Number Services
*** I am confused***
**** Previously, I had understood that for ONLINE ACCESS you must use the new process. Does this mean that we have RC59 approved to file online using TaxCycle with Online Access Permissions? ****
EFile Association of Canada
IMPORTANT RC59 UPDATE
Form RC59 will no longer be used to authorize ONLINE access after May 15, 2017
RC59 is no longer used for new “ONLINE” representation requests.
If you do not use the new RAC system for authorization request, you can still use the RC59 form. However you will not have online access within the 5 day time frame as you will need to mail your request into the CRA for manual processing, a much slower process.