I want to complaint ground staff and call center of Delta Airlines. Can not solve customer problem And shirk responsibility. Customers must solve by themselves all. I'm sorry to see this service. I get the inequality service. it will be published for everyone to get to know. this case DL284 it delay ground staff and call center tell me cannot refund but in 30 april 2016 They say can refund all. Now I want to refund they said cannot help me. Why??????? Other people can transfer ticket why I cannot refund but 30 april 2016 you tell me can refund all. you break one's word. I want refunded ticket TG660