7-Eleven pays out $150 million to staff

About 3600 7-Eleven workers have been paid out $150 million since revelations of under-payments and poor record-keeping.

A Senate committee heard on Wednesday the "compliance partnership" between the Fair Work Ombudsman and 7-Eleven was yielding results.

Ombudsman Natalie James said 10 matters were before the courts.

An agreement struck in 2016 also included installing and overseeing biometric shift-scanning systems and the introduction of 7-Eleven-owned CCTV at all outlets to allow head office to monitor employee hours and make sure workers were paid correctly.

The ombudsman has also written to pizza chain Domino's about underpayments.

"We have some outstanding issues around information we have requested," Ms James said.