Lobang from: https://www.greatdeals.com.sg/2019/03/02/starbucks-uob-samsung-pay-2-dollar-tall-drink-promotion-march-2019
Here’s how to get a really cheap drink at Starbucks this March.
First, you need a Samsung phone with Samsung Pay installed (or grab a buddy or family member who owns one). Then make sure you have a UOB debit or credit card added to the wallet app.