I messaged the customer service that I can't claim voucher, the first time I messaged them, Melissa replied my message, I tried the steps that she told me, but it didn't work, and the second time, same person replied my message and she asked to reinstall the app which I did straight away but didn't work, so I messaged them again, a person called Aleena replied. She asked me to send IC and telecom bill which Melissa didn't asked me to, which is suspicious to me, not sure why they need it