NUH appointment

Hi! I went to the nearest Polyclinic on 28 July and was referred to NUH to see the specialist cause i am currently pregnant, but till today, i cannot get through them via calls, even through emails doesn't help too. waited for them to call back but no calls yet. am i the only one who is experiencing this? it doesn't usually take this long to receive a call from them.#advicepls