Japanese convenience store owners who have been fighting for a break from their grueling 24-hour, 365-day-a-year operations may be closer to having shorter opening hours.

In a report Wednesday, the Fair Trade Commission took the industry’s top chains to task for business practices that have generated enormous profits by pushing growing operating costs onto franchise owners.

The report, which was based on a survey of more than 8,400 convenience store franchisees, detailed numerous problems with the companies’ business models, starting from the franchisee recruitment process and extending to the most fundamental aspects of store management.