It shouldn't happen, and we are truly sorry about this. Please submit a ticket to Customer Service for further investigation.
Step 1 - Tap on A+ Rewards icon at the homepage
Step 2- Tap 'Vouchers' at the center banner.
Step 3 - Tap on the Customer Service icon at the top right
Step 4 - Tap on 'Submit a Ticket' button
Step 5 - Fill up the form
Thank you for supporting A+ Rewards!