The worst customer service

I will no longer utilise travelstart for making my flight bookings. Their customer service is all automated via their online platform, they offer no phone number you can call to sort out any queries or issues and their email is also sent from a NoReply email address so you can never deal with the matter promptly or effectively. Ihad to purchase a new ticket instead of paying a small change of flight fee because their automated systems and payment links do not work.