Recieved this offer via email from Uber, this will be targeted, not sure how long you need to have been inactive to receive the email. But if you haven't booked one for a while check your emails.
Also not sure if the promo ends depending on when you get the email or if it's a specific campaign this week.
Terms from the email:
This promotion is valid only for riders who received this email directly from Uber. Maximum discount of up to $30 per ride in Australia only. If your ride costs less than the discount, the remaining amount cannot be rolled over.
Valid before 26th May 2019 11:59pm AWST. Offer not valid on Uber Eats or UberTaxi. Promotion is non-transferable and does not apply to cancellation or wait time fees.
I didn't get this, but I did get a similar thing from Ola so guess who's getting my business.
I've literally used an Uber once or twice