By Foo Yun Chee

BRUSSELS, Sept 29 (Reuters) – Alphabet GOOGL.O unit Google has offered concessions for a second time in a bid to address EU antitrust regulators’ concerns about its bid for fitness tracker maker Fitbit FIT.N, a European Commission filing showed on Tuesday.

The Commission, which is scheduled to decide on the deal by Dec. 23, did not publish details of the concessions in line with its policy.

The EU competition enforcer will now seek feedback from rivals and customers before deciding whether to accept the concessions, demand more, or either clear or block the detail.

Last month, it rejected Google’s pledge not to use the fitness tracker’s data for advertising purposes in a bid to address competition concerns, saying that it was insufficient.

The Commission recently asked Google rivals and customers about interoperability issues, what technical steps the company could take to foreclose competition to