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They recorded US$6 billion in new billings and eight major global account wins.
The incident impacted more than 400 vulnerable consumers.
Following a Triple Zero outage impacting over 600 calls, Communications Minister Anika Wells has warned Optus should expect consequences.
Nine Entertainment, which owns Stan, is expected to pay around $60 million annually for the rights over the next three years.
ACCC Deputy Chair Catriona Lowe described the conduct as "simply unacceptable."