Hi mummy,
Suggestion to change brand bottles instead? Mam and Dr.Brown is a good brand too, slightly expensive but the price is kinda close to pigeon brand. Both brands are good anti-colic bottles.
Mam bottles the teats is more flat and more suitable for the baby’s mouth.
Sometimes our LO has preferences, is not easy.
Be patience, slowly getting your LO preferences ya.
All the best to you💪🏻💪🏻💪🏻