[Huliwang]

For completeness:

Generate a QR code from YouTrip for $200
Open the LifeSG app to scan this QR code
The $200 will be deposited to your YouTrip account
Use PayNow feature in YouTrip to send the $200 to your hp number

All very simple. Only thing need watch out is to key in your phone number correctly. There were cases where uncles got gabra and typed one wrong number and money went into someone's account.