The burger chain claimed it was donating $1 per burger sold during a promotion, but the consumer watchdog alleges only 4 per cent of purchases actually qualified.

The burger chain claimed it was donating $1 per burger sold during a promotion, but the consumer watchdog alleges only 4 per cent of purchases actually qualified.

The burger chain claimed it was donating $1 per burger sold during the promotion, but the consumer watchdog alleges only 4 per cent of purchases actually qualified.

The burger chain claimed it was donating $1 per burger sold during the promotion, but the consumer watchdog alleges only 4 per cent of purchases actually qualified.

The competition regulator is suing the burger chain in the Federal Court for allegedly making misleading claims about donations to an environmental cause.

Australian Competition and Consumer Commission launches federal court action against restaurant over Tree Day Tuesday campaign