Happy star and Happy star plus plan need to give more data
Happy star (200MB) and Happy star plus (400MB) are very very low data amount in today. The data amount never update since last more than 6 years ago.
e.g Singtel YAY plan come with 15GB, M1 Power $19 come with 2.5GB
and every prepaid data package automatically deduct 50MB after a few minutes (no background data usage as totally switch off data, can check via *123# ). i already terminate one starhub prepaid number.