The supermarket watchdog has urged suppliers to submit complaints about potential breaches of the industry’s code of conduct.

The Groceries Code Adjudicator wants to reassure suppliers after a survey commissioned by the body found that less than 40% of those polled would complain to it, according to the Times.

Results from the YouGov poll showed 58% feared retribution from the big supermarkets and 41% didn’t trust that the adjudicator would “act”.