Nyamuk everywhere... my gal kena 2 on her jaw, one on her hand, 3 on her legs...

Just went to mgmt office yesterday to complaint bout bathroom ceiling leaking... but the staff is quite unhelpful.... how can i contact the maintenance staff directly? Does anyone know ? Hubby said the leaking is serious n the mgmt staff said dun know when will ppl come over to my unit for inspection....geram betul...