The OAS trading reward will be distributed to qualified users within 14 working days after the campaign ends. This is to ensure that all users who have met the requirements for the reward will receive it in a timely manner. This includes verifying that all trades were completed according to the terms of the campaign and that all users have met the minimum trading requirements. Once all of these criteria have been met, the rewards will be sent to the user's gate.io account. It is important to note that the rewards will not be sent until the campaign has officially ended, so users should be sure to complete their trades before the end date in order to be eligible for the reward.