Honestly I haven't done NIPT myself (my pregnancies were before it became common here!), tapi dari kawan-kawan yang buat, most of them did it di private hospitals or fertility clinics around KL area, harga boleh vary quite a bit depending on which centre, so best to call around a few places for quotes, they're usually friendly about explaining the process jugak. As for accuracy, I hear it's very reliable for detecting chromosomal issues, but since this is such an important test, I'd suggest having a chat with your gynae first to see if it's the right fit for your situation, they'll know your case best and can recommend where to go locally!