Aww, that's such a common struggle, mama! I haven't personally tried Piko Bello kaya hindi ako makakatulong much, pero a few of my mum friends swear by bottles na talaga lang parang breast, may isa akong kaibigan na nag-switch from rejected bottles to ones na may softer, wider teat at suddenly ang baby niya nag-accept na. The trick talaga ay finding the right bottle + patience, because minsan it takes trying a few before the baby clicks with one. Since you're going back to work soon, maybe ask din sa iyong OB or pedia kung may suggestions sila, or check some mom groups kung may nag-share ng reviews, ang reviews talaga ay game-changer when choosing bottles! Sending you patience, mama, you've got this!