Appalling customer service

Incredibly frustrating sorting out my flight as they are cancelled by the airlines. Travelstart have worsened the process as they provide only copy paste (generic) answer. When I ask to reschedule my flights I was told there is nothing on the system but I can buy tickets from travelstarts website no issues. Also when I ask them why its not on the system and I can buy it on the website they cut me off. But dont worry I will sort it out myself.