Ahhh first confinement, congrats mama! Honestly I don't have direct experience with CL agencies in Hulu Selangor area specifically, tapi a few of my mum friends mentioned that word-of-mouth from your gynae or hospital is usually the best way, they tend to know the reliable ones yang actually stay the full month and tak cabut awal haha. Your best bet is ask your doctor or midwife or check local Facebook mum groups for Hulu Selangor, sebab recommendations from actual moms there akan lebih accurate than anything I can suggest from far away. Good luck with confinement!